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Finding the Fourth Proportional to 1,757.76, 2,424.76 and 1,049.28

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Solution

The fourth proportional to 1,757.76, 2,424.76 and 1,049.28 is: 1,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.76 : 2,424.76 = 1,049.28 : x
  2. Step 2: Convert to fraction form
    1,757.76/2,424.76 = 1,049.28/x
  3. Step 3: Cross multiply
    1,757.76x = 2,424.76 × 1,049.28
  4. Step 4: Simplify right side
    1,757.76x = 2,544,252.17
  5. Step 5: Solve for x
    x = 2,544,252.17/1,757.76
  6. Step 6: Final answer
    x = 1,447.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.