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Finding the Fourth Proportional to 2,373.12, 3,559.68 and 892.71

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Solution

The fourth proportional to 2,373.12, 3,559.68 and 892.71 is: 1,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.12 : 3,559.68 = 892.71 : x
  2. Step 2: Convert to fraction form
    2,373.12/3,559.68 = 892.71/x
  3. Step 3: Cross multiply
    2,373.12x = 3,559.68 × 892.71
  4. Step 4: Simplify right side
    2,373.12x = 3,177,761.93
  5. Step 5: Solve for x
    x = 3,177,761.93/2,373.12
  6. Step 6: Final answer
    x = 1,339.07

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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.