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Finding the Fourth Proportional to 2,104.97, 3,154.89 and 932.45

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Solution

The fourth proportional to 2,104.97, 3,154.89 and 932.45 is: 1,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.97 : 3,154.89 = 932.45 : x
  2. Step 2: Convert to fraction form
    2,104.97/3,154.89 = 932.45/x
  3. Step 3: Cross multiply
    2,104.97x = 3,154.89 × 932.45
  4. Step 4: Simplify right side
    2,104.97x = 2,941,764.90
  5. Step 5: Solve for x
    x = 2,941,764.90/2,104.97
  6. Step 6: Final answer
    x = 1,397.54

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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.