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Finding the Fourth Proportional to 8,368.52, 12,552.80 and 2,212.52

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Solution

The fourth proportional to 8,368.52, 12,552.80 and 2,212.52 is: 3,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.52 : 12,552.80 = 2,212.52 : x
  2. Step 2: Convert to fraction form
    8,368.52/12,552.80 = 2,212.52/x
  3. Step 3: Cross multiply
    8,368.52x = 12,552.80 × 2,212.52
  4. Step 4: Simplify right side
    8,368.52x = 27,773,321.06
  5. Step 5: Solve for x
    x = 27,773,321.06/8,368.52
  6. Step 6: Final answer
    x = 3,318.79

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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.