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Finding the Fourth Proportional to 57,507.60, 79,426.91 and 38,354.09

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Solution

The fourth proportional to 57,507.60, 79,426.91 and 38,354.09 is: 52,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,507.60 : 79,426.91 = 38,354.09 : x
  2. Step 2: Convert to fraction form
    57,507.60/79,426.91 = 38,354.09/x
  3. Step 3: Cross multiply
    57,507.60x = 79,426.91 × 38,354.09
  4. Step 4: Simplify right side
    57,507.60x = 3,046,347,375.62
  5. Step 5: Solve for x
    x = 3,046,347,375.62/57,507.60
  6. Step 6: Final answer
    x = 52,972.95

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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.