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Finding the Fourth Proportional to 15,132.60, 22,671.52 and 8,461.11

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Solution

The fourth proportional to 15,132.60, 22,671.52 and 8,461.11 is: 12,676.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.60 : 22,671.52 = 8,461.11 : x
  2. Step 2: Convert to fraction form
    15,132.60/22,671.52 = 8,461.11/x
  3. Step 3: Cross multiply
    15,132.60x = 22,671.52 × 8,461.11
  4. Step 4: Simplify right side
    15,132.60x = 191,826,184.72
  5. Step 5: Solve for x
    x = 191,826,184.72/15,132.60
  6. Step 6: Final answer
    x = 12,676.36

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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.