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Finding the Fourth Proportional to 63,005.62, 86,981.13 and 48,634.54

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Solution

The fourth proportional to 63,005.62, 86,981.13 and 48,634.54 is: 67,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,005.62 : 86,981.13 = 48,634.54 : x
  2. Step 2: Convert to fraction form
    63,005.62/86,981.13 = 48,634.54/x
  3. Step 3: Cross multiply
    63,005.62x = 86,981.13 × 48,634.54
  4. Step 4: Simplify right side
    63,005.62x = 4,230,287,246.23
  5. Step 5: Solve for x
    x = 4,230,287,246.23/63,005.62
  6. Step 6: Final answer
    x = 67,141.43

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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.