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Finding the Fourth Proportional to 70,039.57, 96,654.60 and 38,208.60

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Solution

The fourth proportional to 70,039.57, 96,654.60 and 38,208.60 is: 52,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.57 : 96,654.60 = 38,208.60 : x
  2. Step 2: Convert to fraction form
    70,039.57/96,654.60 = 38,208.60/x
  3. Step 3: Cross multiply
    70,039.57x = 96,654.60 × 38,208.60
  4. Step 4: Simplify right side
    70,039.57x = 3,693,036,949.56
  5. Step 5: Solve for x
    x = 3,693,036,949.56/70,039.57
  6. Step 6: Final answer
    x = 52,727.86

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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.