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Finding the Fourth Proportional to 3,472.70, 4,794.51 and 2,147.15

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Solution

The fourth proportional to 3,472.70, 4,794.51 and 2,147.15 is: 2,964.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.70 : 4,794.51 = 2,147.15 : x
  2. Step 2: Convert to fraction form
    3,472.70/4,794.51 = 2,147.15/x
  3. Step 3: Cross multiply
    3,472.70x = 4,794.51 × 2,147.15
  4. Step 4: Simplify right side
    3,472.70x = 10,294,508.17
  5. Step 5: Solve for x
    x = 10,294,508.17/3,472.70
  6. Step 6: Final answer
    x = 2,964.41

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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.