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Finding the Fourth Proportional to 12,612.82, 17,405.68 and 7,310.71

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Solution

The fourth proportional to 12,612.82, 17,405.68 and 7,310.71 is: 10,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.82 : 17,405.68 = 7,310.71 : x
  2. Step 2: Convert to fraction form
    12,612.82/17,405.68 = 7,310.71/x
  3. Step 3: Cross multiply
    12,612.82x = 17,405.68 × 7,310.71
  4. Step 4: Simplify right side
    12,612.82x = 127,247,791.80
  5. Step 5: Solve for x
    x = 127,247,791.80/12,612.82
  6. Step 6: Final answer
    x = 10,088.77

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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.