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Finding the Fourth Proportional to 59,769.80, 82,439.88 and 39,327.12

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Solution

The fourth proportional to 59,769.80, 82,439.88 and 39,327.12 is: 54,243.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,769.80 : 82,439.88 = 39,327.12 : x
  2. Step 2: Convert to fraction form
    59,769.80/82,439.88 = 39,327.12/x
  3. Step 3: Cross multiply
    59,769.80x = 82,439.88 × 39,327.12
  4. Step 4: Simplify right side
    59,769.80x = 3,242,122,906.07
  5. Step 5: Solve for x
    x = 3,242,122,906.07/59,769.80
  6. Step 6: Final answer
    x = 54,243.50

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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.