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Finding the Fourth Proportional to 8,778.97, 12,114.99 and 5,001.97

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Solution

The fourth proportional to 8,778.97, 12,114.99 and 5,001.97 is: 6,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.97 : 12,114.99 = 5,001.97 : x
  2. Step 2: Convert to fraction form
    8,778.97/12,114.99 = 5,001.97/x
  3. Step 3: Cross multiply
    8,778.97x = 12,114.99 × 5,001.97
  4. Step 4: Simplify right side
    8,778.97x = 60,598,816.53
  5. Step 5: Solve for x
    x = 60,598,816.53/8,778.97
  6. Step 6: Final answer
    x = 6,902.73

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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.