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Finding the Fourth Proportional to 1,862.56, 2,791.70 and 1,041.22

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Solution

The fourth proportional to 1,862.56, 2,791.70 and 1,041.22 is: 1,560.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.56 : 2,791.70 = 1,041.22 : x
  2. Step 2: Convert to fraction form
    1,862.56/2,791.70 = 1,041.22/x
  3. Step 3: Cross multiply
    1,862.56x = 2,791.70 × 1,041.22
  4. Step 4: Simplify right side
    1,862.56x = 2,906,773.87
  5. Step 5: Solve for x
    x = 2,906,773.87/1,862.56
  6. Step 6: Final answer
    x = 1,560.63

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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.