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Finding the Fourth Proportional to 62,819.16, 86,690.98 and 34,138.82

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Solution

The fourth proportional to 62,819.16, 86,690.98 and 34,138.82 is: 47,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.16 : 86,690.98 = 34,138.82 : x
  2. Step 2: Convert to fraction form
    62,819.16/86,690.98 = 34,138.82/x
  3. Step 3: Cross multiply
    62,819.16x = 86,690.98 × 34,138.82
  4. Step 4: Simplify right side
    62,819.16x = 2,959,527,761.84
  5. Step 5: Solve for x
    x = 2,959,527,761.84/62,819.16
  6. Step 6: Final answer
    x = 47,111.86

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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.