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Finding the Fourth Proportional to 62,654.45, 86,473.99 and 47,521.78

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Solution

The fourth proportional to 62,654.45, 86,473.99 and 47,521.78 is: 65,588.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,654.45 : 86,473.99 = 47,521.78 : x
  2. Step 2: Convert to fraction form
    62,654.45/86,473.99 = 47,521.78/x
  3. Step 3: Cross multiply
    62,654.45x = 86,473.99 × 47,521.78
  4. Step 4: Simplify right side
    62,654.45x = 4,109,397,928.50
  5. Step 5: Solve for x
    x = 4,109,397,928.50/62,654.45
  6. Step 6: Final answer
    x = 65,588.29

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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.