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Finding the Fourth Proportional to 62,494.85, 86,283.15 and 55,768.93

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Solution

The fourth proportional to 62,494.85, 86,283.15 and 55,768.93 is: 76,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,494.85 : 86,283.15 = 55,768.93 : x
  2. Step 2: Convert to fraction form
    62,494.85/86,283.15 = 55,768.93/x
  3. Step 3: Cross multiply
    62,494.85x = 86,283.15 × 55,768.93
  4. Step 4: Simplify right side
    62,494.85x = 4,811,918,952.53
  5. Step 5: Solve for x
    x = 4,811,918,952.53/62,494.85
  6. Step 6: Final answer
    x = 76,997.05

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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.