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Finding the Fourth Proportional to 62,640.54, 86,446.44 and 34,347.24

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Solution

The fourth proportional to 62,640.54, 86,446.44 and 34,347.24 is: 47,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,640.54 : 86,446.44 = 34,347.24 : x
  2. Step 2: Convert to fraction form
    62,640.54/86,446.44 = 34,347.24/x
  3. Step 3: Cross multiply
    62,640.54x = 86,446.44 × 34,347.24
  4. Step 4: Simplify right side
    62,640.54x = 2,969,196,621.83
  5. Step 5: Solve for x
    x = 2,969,196,621.83/62,640.54
  6. Step 6: Final answer
    x = 47,400.56

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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.