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Finding the Fourth Proportional to 2,374.60, 3,562.46 and 913.80

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Solution

The fourth proportional to 2,374.60, 3,562.46 and 913.80 is: 1,370.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.60 : 3,562.46 = 913.80 : x
  2. Step 2: Convert to fraction form
    2,374.60/3,562.46 = 913.80/x
  3. Step 3: Cross multiply
    2,374.60x = 3,562.46 × 913.80
  4. Step 4: Simplify right side
    2,374.60x = 3,255,375.95
  5. Step 5: Solve for x
    x = 3,255,375.95/2,374.60
  6. Step 6: Final answer
    x = 1,370.92

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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.