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Finding the Fourth Proportional to 6,612.98, 9,921.10 and 3,053.44

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Solution

The fourth proportional to 6,612.98, 9,921.10 and 3,053.44 is: 4,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.98 : 9,921.10 = 3,053.44 : x
  2. Step 2: Convert to fraction form
    6,612.98/9,921.10 = 3,053.44/x
  3. Step 3: Cross multiply
    6,612.98x = 9,921.10 × 3,053.44
  4. Step 4: Simplify right side
    6,612.98x = 30,293,451.15
  5. Step 5: Solve for x
    x = 30,293,451.15/6,612.98
  6. Step 6: Final answer
    x = 4,580.91

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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.