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Finding the Fourth Proportional to 2,367.60, 3,551.60 and 724.32

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Solution

The fourth proportional to 2,367.60, 3,551.60 and 724.32 is: 1,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,367.60 : 3,551.60 = 724.32 : x
  2. Step 2: Convert to fraction form
    2,367.60/3,551.60 = 724.32/x
  3. Step 3: Cross multiply
    2,367.60x = 3,551.60 × 724.32
  4. Step 4: Simplify right side
    2,367.60x = 2,572,494.91
  5. Step 5: Solve for x
    x = 2,572,494.91/2,367.60
  6. Step 6: Final answer
    x = 1,086.54

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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.