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Finding the Fourth Proportional to 18,195.98, 25,110.19 and 10,238.21

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Solution

The fourth proportional to 18,195.98, 25,110.19 and 10,238.21 is: 14,128.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.98 : 25,110.19 = 10,238.21 : x
  2. Step 2: Convert to fraction form
    18,195.98/25,110.19 = 10,238.21/x
  3. Step 3: Cross multiply
    18,195.98x = 25,110.19 × 10,238.21
  4. Step 4: Simplify right side
    18,195.98x = 257,083,398.36
  5. Step 5: Solve for x
    x = 257,083,398.36/18,195.98
  6. Step 6: Final answer
    x = 14,128.58

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Half scale
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Double scale
Find fourth proportional to 18,196.98, 25,111.57 and 10,239.21
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.