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Finding the Fourth Proportional to 1,520.10, 2,264.18 and 1,449

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Solution

The fourth proportional to 1,520.10, 2,264.18 and 1,449 is: 2,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.10 : 2,264.18 = 1,449 : x
  2. Step 2: Convert to fraction form
    1,520.10/2,264.18 = 1,449/x
  3. Step 3: Cross multiply
    1,520.10x = 2,264.18 × 1,449
  4. Step 4: Simplify right side
    1,520.10x = 3,280,789.58
  5. Step 5: Solve for x
    x = 3,280,789.58/1,520.10
  6. Step 6: Final answer
    x = 2,158.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.