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Finding the Fourth Proportional to 2,681.52, 4,022.40 and 733.92

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Solution

The fourth proportional to 2,681.52, 4,022.40 and 733.92 is: 1,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.52 : 4,022.40 = 733.92 : x
  2. Step 2: Convert to fraction form
    2,681.52/4,022.40 = 733.92/x
  3. Step 3: Cross multiply
    2,681.52x = 4,022.40 × 733.92
  4. Step 4: Simplify right side
    2,681.52x = 2,952,119.81
  5. Step 5: Solve for x
    x = 2,952,119.81/2,681.52
  6. Step 6: Final answer
    x = 1,100.91

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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.