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Finding the Fourth Proportional to 6,612.68, 9,914.16 and 3,152.36

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Solution

The fourth proportional to 6,612.68, 9,914.16 and 3,152.36 is: 4,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.68 : 9,914.16 = 3,152.36 : x
  2. Step 2: Convert to fraction form
    6,612.68/9,914.16 = 3,152.36/x
  3. Step 3: Cross multiply
    6,612.68x = 9,914.16 × 3,152.36
  4. Step 4: Simplify right side
    6,612.68x = 31,253,001.42
  5. Step 5: Solve for x
    x = 31,253,001.42/6,612.68
  6. Step 6: Final answer
    x = 4,726.22

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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.