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Finding the Fourth Proportional to 6,732.40, 10,098.60 and 2,115.40

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Solution

The fourth proportional to 6,732.40, 10,098.60 and 2,115.40 is: 3,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,732.40 : 10,098.60 = 2,115.40 : x
  2. Step 2: Convert to fraction form
    6,732.40/10,098.60 = 2,115.40/x
  3. Step 3: Cross multiply
    6,732.40x = 10,098.60 × 2,115.40
  4. Step 4: Simplify right side
    6,732.40x = 21,362,578.44
  5. Step 5: Solve for x
    x = 21,362,578.44/6,732.40
  6. Step 6: Final answer
    x = 3,173.10

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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.