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Finding the Fourth Proportional to 12,154.60, 16,772.76 and 8,175.04

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Solution

The fourth proportional to 12,154.60, 16,772.76 and 8,175.04 is: 11,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.60 : 16,772.76 = 8,175.04 : x
  2. Step 2: Convert to fraction form
    12,154.60/16,772.76 = 8,175.04/x
  3. Step 3: Cross multiply
    12,154.60x = 16,772.76 × 8,175.04
  4. Step 4: Simplify right side
    12,154.60x = 137,117,983.91
  5. Step 5: Solve for x
    x = 137,117,983.91/12,154.60
  6. Step 6: Final answer
    x = 11,281.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.