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Finding the Fourth Proportional to 8,614.10, 12,918.42 and 3,348.77

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Solution

The fourth proportional to 8,614.10, 12,918.42 and 3,348.77 is: 5,022.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.10 : 12,918.42 = 3,348.77 : x
  2. Step 2: Convert to fraction form
    8,614.10/12,918.42 = 3,348.77/x
  3. Step 3: Cross multiply
    8,614.10x = 12,918.42 × 3,348.77
  4. Step 4: Simplify right side
    8,614.10x = 43,260,752.75
  5. Step 5: Solve for x
    x = 43,260,752.75/8,614.10
  6. Step 6: Final answer
    x = 5,022.08

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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.