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Finding the Fourth Proportional to 2,237.85, 3,357.92 and 922.61

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Solution

The fourth proportional to 2,237.85, 3,357.92 and 922.61 is: 1,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.85 : 3,357.92 = 922.61 : x
  2. Step 2: Convert to fraction form
    2,237.85/3,357.92 = 922.61/x
  3. Step 3: Cross multiply
    2,237.85x = 3,357.92 × 922.61
  4. Step 4: Simplify right side
    2,237.85x = 3,098,061.27
  5. Step 5: Solve for x
    x = 3,098,061.27/2,237.85
  6. Step 6: Final answer
    x = 1,384.39

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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.