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Finding the Fourth Proportional to 6,599.52, 9,900.40 and 3,311.84

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Solution

The fourth proportional to 6,599.52, 9,900.40 and 3,311.84 is: 4,968.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.52 : 9,900.40 = 3,311.84 : x
  2. Step 2: Convert to fraction form
    6,599.52/9,900.40 = 3,311.84/x
  3. Step 3: Cross multiply
    6,599.52x = 9,900.40 × 3,311.84
  4. Step 4: Simplify right side
    6,599.52x = 32,788,540.74
  5. Step 5: Solve for x
    x = 32,788,540.74/6,599.52
  6. Step 6: Final answer
    x = 4,968.32

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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.