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Finding the Fourth Proportional to 63,545.32, 87,694.87 and 38,389.96

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Solution

The fourth proportional to 63,545.32, 87,694.87 and 38,389.96 is: 52,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,545.32 : 87,694.87 = 38,389.96 : x
  2. Step 2: Convert to fraction form
    63,545.32/87,694.87 = 38,389.96/x
  3. Step 3: Cross multiply
    63,545.32x = 87,694.87 × 38,389.96
  4. Step 4: Simplify right side
    63,545.32x = 3,366,602,551.51
  5. Step 5: Solve for x
    x = 3,366,602,551.51/63,545.32
  6. Step 6: Final answer
    x = 52,979.55

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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.