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Finding the Fourth Proportional to 8,696.12, 13,044.15 and 3,148.17

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Solution

The fourth proportional to 8,696.12, 13,044.15 and 3,148.17 is: 4,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.12 : 13,044.15 = 3,148.17 : x
  2. Step 2: Convert to fraction form
    8,696.12/13,044.15 = 3,148.17/x
  3. Step 3: Cross multiply
    8,696.12x = 13,044.15 × 3,148.17
  4. Step 4: Simplify right side
    8,696.12x = 41,065,201.71
  5. Step 5: Solve for x
    x = 41,065,201.71/8,696.12
  6. Step 6: Final answer
    x = 4,722.25

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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.