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Finding the Fourth Proportional to 8,981.25, 12,394.25 and 5,204.69

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Solution

The fourth proportional to 8,981.25, 12,394.25 and 5,204.69 is: 7,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.25 : 12,394.25 = 5,204.69 : x
  2. Step 2: Convert to fraction form
    8,981.25/12,394.25 = 5,204.69/x
  3. Step 3: Cross multiply
    8,981.25x = 12,394.25 × 5,204.69
  4. Step 4: Simplify right side
    8,981.25x = 64,508,207.03
  5. Step 5: Solve for x
    x = 64,508,207.03/8,981.25
  6. Step 6: Final answer
    x = 7,182.55

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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.