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Finding the Fourth Proportional to 62,620.92, 86,422.32 and 34,332

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Solution

The fourth proportional to 62,620.92, 86,422.32 and 34,332 is: 47,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,620.92 : 86,422.32 = 34,332 : x
  2. Step 2: Convert to fraction form
    62,620.92/86,422.32 = 34,332/x
  3. Step 3: Cross multiply
    62,620.92x = 86,422.32 × 34,332
  4. Step 4: Simplify right side
    62,620.92x = 2,967,051,090.24
  5. Step 5: Solve for x
    x = 2,967,051,090.24/62,620.92
  6. Step 6: Final answer
    x = 47,381.15

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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.