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Finding the Fourth Proportional to 19,853.92, 27,398.22 and 10,901.80

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Solution

The fourth proportional to 19,853.92, 27,398.22 and 10,901.80 is: 15,044.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.92 : 27,398.22 = 10,901.80 : x
  2. Step 2: Convert to fraction form
    19,853.92/27,398.22 = 10,901.80/x
  3. Step 3: Cross multiply
    19,853.92x = 27,398.22 × 10,901.80
  4. Step 4: Simplify right side
    19,853.92x = 298,689,777.80
  5. Step 5: Solve for x
    x = 298,689,777.80/19,853.92
  6. Step 6: Final answer
    x = 15,044.38

Related Problems

Find fourth proportional to 9,926.96, 13,699.11 and 5,450.90
Half scale
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Double scale
Find fourth proportional to 19,854.92, 27,399.60 and 10,902.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.