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Finding the Fourth Proportional to 3,742.70, 5,612.03 and 1,551.65

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Solution

The fourth proportional to 3,742.70, 5,612.03 and 1,551.65 is: 2,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.70 : 5,612.03 = 1,551.65 : x
  2. Step 2: Convert to fraction form
    3,742.70/5,612.03 = 1,551.65/x
  3. Step 3: Cross multiply
    3,742.70x = 5,612.03 × 1,551.65
  4. Step 4: Simplify right side
    3,742.70x = 8,707,898.59
  5. Step 5: Solve for x
    x = 8,707,898.59/3,742.70
  6. Step 6: Final answer
    x = 2,326.64

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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.