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Finding the Fourth Proportional to 8,347.73, 12,521.16 and 2,801.12

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Solution

The fourth proportional to 8,347.73, 12,521.16 and 2,801.12 is: 4,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.73 : 12,521.16 = 2,801.12 : x
  2. Step 2: Convert to fraction form
    8,347.73/12,521.16 = 2,801.12/x
  3. Step 3: Cross multiply
    8,347.73x = 12,521.16 × 2,801.12
  4. Step 4: Simplify right side
    8,347.73x = 35,073,209.09
  5. Step 5: Solve for x
    x = 35,073,209.09/8,347.73
  6. Step 6: Final answer
    x = 4,201.53

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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.