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Finding the Fourth Proportional to 8,452.32, 12,671.22 and 4,751.52

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Solution

The fourth proportional to 8,452.32, 12,671.22 and 4,751.52 is: 7,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.32 : 12,671.22 = 4,751.52 : x
  2. Step 2: Convert to fraction form
    8,452.32/12,671.22 = 4,751.52/x
  3. Step 3: Cross multiply
    8,452.32x = 12,671.22 × 4,751.52
  4. Step 4: Simplify right side
    8,452.32x = 60,207,555.25
  5. Step 5: Solve for x
    x = 60,207,555.25/8,452.32
  6. Step 6: Final answer
    x = 7,123.20

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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.