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Finding the Fourth Proportional to 38,491.60, 57,737.40 and 17,755.60

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Solution

The fourth proportional to 38,491.60, 57,737.40 and 17,755.60 is: 26,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491.60 : 57,737.40 = 17,755.60 : x
  2. Step 2: Convert to fraction form
    38,491.60/57,737.40 = 17,755.60/x
  3. Step 3: Cross multiply
    38,491.60x = 57,737.40 × 17,755.60
  4. Step 4: Simplify right side
    38,491.60x = 1,025,162,179.44
  5. Step 5: Solve for x
    x = 1,025,162,179.44/38,491.60
  6. Step 6: Final answer
    x = 26,633.40

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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.