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Finding the Fourth Proportional to 2,777.92, 4,167.04 and 1,046.56

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Solution

The fourth proportional to 2,777.92, 4,167.04 and 1,046.56 is: 1,569.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.92 : 4,167.04 = 1,046.56 : x
  2. Step 2: Convert to fraction form
    2,777.92/4,167.04 = 1,046.56/x
  3. Step 3: Cross multiply
    2,777.92x = 4,167.04 × 1,046.56
  4. Step 4: Simplify right side
    2,777.92x = 4,361,057.38
  5. Step 5: Solve for x
    x = 4,361,057.38/2,777.92
  6. Step 6: Final answer
    x = 1,569.90

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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.