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Finding the Fourth Proportional to 59,427.80, 89,141.70 and 38,432.60

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Solution

The fourth proportional to 59,427.80, 89,141.70 and 38,432.60 is: 57,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,427.80 : 89,141.70 = 38,432.60 : x
  2. Step 2: Convert to fraction form
    59,427.80/89,141.70 = 38,432.60/x
  3. Step 3: Cross multiply
    59,427.80x = 89,141.70 × 38,432.60
  4. Step 4: Simplify right side
    59,427.80x = 3,425,947,299.42
  5. Step 5: Solve for x
    x = 3,425,947,299.42/59,427.80
  6. Step 6: Final answer
    x = 57,648.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.