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Finding the Fourth Proportional to 3,132.52, 4,700.90 and 1,672.70

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Solution

The fourth proportional to 3,132.52, 4,700.90 and 1,672.70 is: 2,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.52 : 4,700.90 = 1,672.70 : x
  2. Step 2: Convert to fraction form
    3,132.52/4,700.90 = 1,672.70/x
  3. Step 3: Cross multiply
    3,132.52x = 4,700.90 × 1,672.70
  4. Step 4: Simplify right side
    3,132.52x = 7,863,195.43
  5. Step 5: Solve for x
    x = 7,863,195.43/3,132.52
  6. Step 6: Final answer
    x = 2,510.18

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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.