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Finding the Fourth Proportional to 38,497.60, 57,631.20 and 36,219.20

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Solution

The fourth proportional to 38,497.60, 57,631.20 and 36,219.20 is: 54,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,497.60 : 57,631.20 = 36,219.20 : x
  2. Step 2: Convert to fraction form
    38,497.60/57,631.20 = 36,219.20/x
  3. Step 3: Cross multiply
    38,497.60x = 57,631.20 × 36,219.20
  4. Step 4: Simplify right side
    38,497.60x = 2,087,355,959.04
  5. Step 5: Solve for x
    x = 2,087,355,959.04/38,497.60
  6. Step 6: Final answer
    x = 54,220.42

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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.