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Finding the Fourth Proportional to 62,616.53, 86,419.67 and 38,750.89

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Solution

The fourth proportional to 62,616.53, 86,419.67 and 38,750.89 is: 53,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,616.53 : 86,419.67 = 38,750.89 : x
  2. Step 2: Convert to fraction form
    62,616.53/86,419.67 = 38,750.89/x
  3. Step 3: Cross multiply
    62,616.53x = 86,419.67 × 38,750.89
  4. Step 4: Simplify right side
    62,616.53x = 3,348,839,126.01
  5. Step 5: Solve for x
    x = 3,348,839,126.01/62,616.53
  6. Step 6: Final answer
    x = 53,481.71

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1.5x scale

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.