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Finding the Fourth Proportional to 56,372.70, 77,807.12 and 35,147.87

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Solution

The fourth proportional to 56,372.70, 77,807.12 and 35,147.87 is: 48,512.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,372.70 : 77,807.12 = 35,147.87 : x
  2. Step 2: Convert to fraction form
    56,372.70/77,807.12 = 35,147.87/x
  3. Step 3: Cross multiply
    56,372.70x = 77,807.12 × 35,147.87
  4. Step 4: Simplify right side
    56,372.70x = 2,734,753,974.06
  5. Step 5: Solve for x
    x = 2,734,753,974.06/56,372.70
  6. Step 6: Final answer
    x = 48,512.03

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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.