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Finding the Fourth Proportional to 62,699.52, 86,525.10 and 34,405.68

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Solution

The fourth proportional to 62,699.52, 86,525.10 and 34,405.68 is: 47,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,699.52 : 86,525.10 = 34,405.68 : x
  2. Step 2: Convert to fraction form
    62,699.52/86,525.10 = 34,405.68/x
  3. Step 3: Cross multiply
    62,699.52x = 86,525.10 × 34,405.68
  4. Step 4: Simplify right side
    62,699.52x = 2,976,954,902.57
  5. Step 5: Solve for x
    x = 2,976,954,902.57/62,699.52
  6. Step 6: Final answer
    x = 47,479.71

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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.