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Finding the Fourth Proportional to 6,655.53, 9,984.35 and 2,213.36

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Solution

The fourth proportional to 6,655.53, 9,984.35 and 2,213.36 is: 3,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.53 : 9,984.35 = 2,213.36 : x
  2. Step 2: Convert to fraction form
    6,655.53/9,984.35 = 2,213.36/x
  3. Step 3: Cross multiply
    6,655.53x = 9,984.35 × 2,213.36
  4. Step 4: Simplify right side
    6,655.53x = 22,098,960.92
  5. Step 5: Solve for x
    x = 22,098,960.92/6,655.53
  6. Step 6: Final answer
    x = 3,320.39

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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.