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Finding the Fourth Proportional to 59,769.50, 82,454.20 and 38,555.60

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Solution

The fourth proportional to 59,769.50, 82,454.20 and 38,555.60 is: 53,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,769.50 : 82,454.20 = 38,555.60 : x
  2. Step 2: Convert to fraction form
    59,769.50/82,454.20 = 38,555.60/x
  3. Step 3: Cross multiply
    59,769.50x = 82,454.20 × 38,555.60
  4. Step 4: Simplify right side
    59,769.50x = 3,179,071,153.52
  5. Step 5: Solve for x
    x = 3,179,071,153.52/59,769.50
  6. Step 6: Final answer
    x = 53,188.85

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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.