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Finding the Fourth Proportional to 62,871.87, 86,763.77 and 34,191.80

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Solution

The fourth proportional to 62,871.87, 86,763.77 and 34,191.80 is: 47,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,871.87 : 86,763.77 = 34,191.80 : x
  2. Step 2: Convert to fraction form
    62,871.87/86,763.77 = 34,191.80/x
  3. Step 3: Cross multiply
    62,871.87x = 86,763.77 × 34,191.80
  4. Step 4: Simplify right side
    62,871.87x = 2,966,609,711.77
  5. Step 5: Solve for x
    x = 2,966,609,711.77/62,871.87
  6. Step 6: Final answer
    x = 47,185.01

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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.