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Finding the Fourth Proportional to 2,695.59, 4,043.41 and 747.95

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Solution

The fourth proportional to 2,695.59, 4,043.41 and 747.95 is: 1,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.59 : 4,043.41 = 747.95 : x
  2. Step 2: Convert to fraction form
    2,695.59/4,043.41 = 747.95/x
  3. Step 3: Cross multiply
    2,695.59x = 4,043.41 × 747.95
  4. Step 4: Simplify right side
    2,695.59x = 3,024,246.42
  5. Step 5: Solve for x
    x = 3,024,246.42/2,695.59
  6. Step 6: Final answer
    x = 1,121.92

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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.