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Finding the Fourth Proportional to 5,161.61, 7,742.41 and 1,463.87

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Solution

The fourth proportional to 5,161.61, 7,742.41 and 1,463.87 is: 2,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.61 : 7,742.41 = 1,463.87 : x
  2. Step 2: Convert to fraction form
    5,161.61/7,742.41 = 1,463.87/x
  3. Step 3: Cross multiply
    5,161.61x = 7,742.41 × 1,463.87
  4. Step 4: Simplify right side
    5,161.61x = 11,333,862.70
  5. Step 5: Solve for x
    x = 11,333,862.70/5,161.61
  6. Step 6: Final answer
    x = 2,195.80

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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.