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Finding the Fourth Proportional to 62,612.88, 86,405.77 and 34,317.96

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Solution

The fourth proportional to 62,612.88, 86,405.77 and 34,317.96 is: 47,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,612.88 : 86,405.77 = 34,317.96 : x
  2. Step 2: Convert to fraction form
    62,612.88/86,405.77 = 34,317.96/x
  3. Step 3: Cross multiply
    62,612.88x = 86,405.77 × 34,317.96
  4. Step 4: Simplify right side
    62,612.88x = 2,965,269,758.63
  5. Step 5: Solve for x
    x = 2,965,269,758.63/62,612.88
  6. Step 6: Final answer
    x = 47,358.78

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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.