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Finding the Fourth Proportional to 57,397.60, 79,120.56 and 37,251.28

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Solution

The fourth proportional to 57,397.60, 79,120.56 and 37,251.28 is: 51,349.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,397.60 : 79,120.56 = 37,251.28 : x
  2. Step 2: Convert to fraction form
    57,397.60/79,120.56 = 37,251.28/x
  3. Step 3: Cross multiply
    57,397.60x = 79,120.56 × 37,251.28
  4. Step 4: Simplify right side
    57,397.60x = 2,947,342,134.32
  5. Step 5: Solve for x
    x = 2,947,342,134.32/57,397.60
  6. Step 6: Final answer
    x = 51,349.57

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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.