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Finding the Fourth Proportional to 2,913.52, 4,372.20 and 1,374.64

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Solution

The fourth proportional to 2,913.52, 4,372.20 and 1,374.64 is: 2,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.52 : 4,372.20 = 1,374.64 : x
  2. Step 2: Convert to fraction form
    2,913.52/4,372.20 = 1,374.64/x
  3. Step 3: Cross multiply
    2,913.52x = 4,372.20 × 1,374.64
  4. Step 4: Simplify right side
    2,913.52x = 6,010,201.01
  5. Step 5: Solve for x
    x = 6,010,201.01/2,913.52
  6. Step 6: Final answer
    x = 2,062.87

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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.