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Finding the Fourth Proportional to 62,811.62, 86,681.46 and 34,517.30

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Solution

The fourth proportional to 62,811.62, 86,681.46 and 34,517.30 is: 47,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,811.62 : 86,681.46 = 34,517.30 : x
  2. Step 2: Convert to fraction form
    62,811.62/86,681.46 = 34,517.30/x
  3. Step 3: Cross multiply
    62,811.62x = 86,681.46 × 34,517.30
  4. Step 4: Simplify right side
    62,811.62x = 2,992,009,959.26
  5. Step 5: Solve for x
    x = 2,992,009,959.26/62,811.62
  6. Step 6: Final answer
    x = 47,634.66

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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.