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Finding the Fourth Proportional to 57,534.38, 79,356.53 and 38,404.50

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Solution

The fourth proportional to 57,534.38, 79,356.53 and 38,404.50 is: 52,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,534.38 : 79,356.53 = 38,404.50 : x
  2. Step 2: Convert to fraction form
    57,534.38/79,356.53 = 38,404.50/x
  3. Step 3: Cross multiply
    57,534.38x = 79,356.53 × 38,404.50
  4. Step 4: Simplify right side
    57,534.38x = 3,047,647,952.40
  5. Step 5: Solve for x
    x = 3,047,647,952.40/57,534.38
  6. Step 6: Final answer
    x = 52,970.91

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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.