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Finding the Fourth Proportional to 63,419.74, 87,519.88 and 38,264.38

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Solution

The fourth proportional to 63,419.74, 87,519.88 and 38,264.38 is: 52,805.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,419.74 : 87,519.88 = 38,264.38 : x
  2. Step 2: Convert to fraction form
    63,419.74/87,519.88 = 38,264.38/x
  3. Step 3: Cross multiply
    63,419.74x = 87,519.88 × 38,264.38
  4. Step 4: Simplify right side
    63,419.74x = 3,348,893,508.28
  5. Step 5: Solve for x
    x = 3,348,893,508.28/63,419.74
  6. Step 6: Final answer
    x = 52,805.23

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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.