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Finding the Fourth Proportional to 64,295.29, 88,713.15 and 38,805.79

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Solution

The fourth proportional to 64,295.29, 88,713.15 and 38,805.79 is: 53,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,295.29 : 88,713.15 = 38,805.79 : x
  2. Step 2: Convert to fraction form
    64,295.29/88,713.15 = 38,805.79/x
  3. Step 3: Cross multiply
    64,295.29x = 88,713.15 × 38,805.79
  4. Step 4: Simplify right side
    64,295.29x = 3,442,583,869.14
  5. Step 5: Solve for x
    x = 3,442,583,869.14/64,295.29
  6. Step 6: Final answer
    x = 53,543.33

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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.