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Finding the Fourth Proportional to 64,542.96, 89,064.90 and 36,248.04

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Solution

The fourth proportional to 64,542.96, 89,064.90 and 36,248.04 is: 50,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,542.96 : 89,064.90 = 36,248.04 : x
  2. Step 2: Convert to fraction form
    64,542.96/89,064.90 = 36,248.04/x
  3. Step 3: Cross multiply
    64,542.96x = 89,064.90 × 36,248.04
  4. Step 4: Simplify right side
    64,542.96x = 3,228,428,057.80
  5. Step 5: Solve for x
    x = 3,228,428,057.80/64,542.96
  6. Step 6: Final answer
    x = 50,019.83

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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.