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Finding the Fourth Proportional to 63,766.65, 87,998.72 and 36,542.20

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Solution

The fourth proportional to 63,766.65, 87,998.72 and 36,542.20 is: 50,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,766.65 : 87,998.72 = 36,542.20 : x
  2. Step 2: Convert to fraction form
    63,766.65/87,998.72 = 36,542.20/x
  3. Step 3: Cross multiply
    63,766.65x = 87,998.72 × 36,542.20
  4. Step 4: Simplify right side
    63,766.65x = 3,215,666,423.28
  5. Step 5: Solve for x
    x = 3,215,666,423.28/63,766.65
  6. Step 6: Final answer
    x = 50,428.65

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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.