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Finding the Fourth Proportional to 62,452.17, 86,079 and 47,340

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Solution

The fourth proportional to 62,452.17, 86,079 and 47,340 is: 65,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,452.17 : 86,079 = 47,340 : x
  2. Step 2: Convert to fraction form
    62,452.17/86,079 = 47,340/x
  3. Step 3: Cross multiply
    62,452.17x = 86,079 × 47,340
  4. Step 4: Simplify right side
    62,452.17x = 4,074,979,860
  5. Step 5: Solve for x
    x = 4,074,979,860/62,452.17
  6. Step 6: Final answer
    x = 65,249.61

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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.