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Finding the Fourth Proportional to 22,141.98, 30,555.03 and 12,070.20

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Solution

The fourth proportional to 22,141.98, 30,555.03 and 12,070.20 is: 16,656.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,141.98 : 30,555.03 = 12,070.20 : x
  2. Step 2: Convert to fraction form
    22,141.98/30,555.03 = 12,070.20/x
  3. Step 3: Cross multiply
    22,141.98x = 30,555.03 × 12,070.20
  4. Step 4: Simplify right side
    22,141.98x = 368,805,323.11
  5. Step 5: Solve for x
    x = 368,805,323.11/22,141.98
  6. Step 6: Final answer
    x = 16,656.38

Related Problems

Find fourth proportional to 11,070.99, 15,277.52 and 6,035.10
Half scale
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Double scale
Find fourth proportional to 22,142.98, 30,556.41 and 12,071.20
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.