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Finding the Fourth Proportional to 5,671.25, 8,508.60 and 2,899.87

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Solution

The fourth proportional to 5,671.25, 8,508.60 and 2,899.87 is: 4,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.25 : 8,508.60 = 2,899.87 : x
  2. Step 2: Convert to fraction form
    5,671.25/8,508.60 = 2,899.87/x
  3. Step 3: Cross multiply
    5,671.25x = 8,508.60 × 2,899.87
  4. Step 4: Simplify right side
    5,671.25x = 24,673,812.61
  5. Step 5: Solve for x
    x = 24,673,812.61/5,671.25
  6. Step 6: Final answer
    x = 4,350.68

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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.