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Finding the Fourth Proportional to 60,996.96, 84,108.96 and 39,736.80

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Solution

The fourth proportional to 60,996.96, 84,108.96 and 39,736.80 is: 54,793.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,996.96 : 84,108.96 = 39,736.80 : x
  2. Step 2: Convert to fraction form
    60,996.96/84,108.96 = 39,736.80/x
  3. Step 3: Cross multiply
    60,996.96x = 84,108.96 × 39,736.80
  4. Step 4: Simplify right side
    60,996.96x = 3,342,220,921.73
  5. Step 5: Solve for x
    x = 3,342,220,921.73/60,996.96
  6. Step 6: Final answer
    x = 54,793.24

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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.