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Finding the Fourth Proportional to 8,868.25, 13,302.38 and 2,712.25

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Solution

The fourth proportional to 8,868.25, 13,302.38 and 2,712.25 is: 4,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.25 : 13,302.38 = 2,712.25 : x
  2. Step 2: Convert to fraction form
    8,868.25/13,302.38 = 2,712.25/x
  3. Step 3: Cross multiply
    8,868.25x = 13,302.38 × 2,712.25
  4. Step 4: Simplify right side
    8,868.25x = 36,079,380.16
  5. Step 5: Solve for x
    x = 36,079,380.16/8,868.25
  6. Step 6: Final answer
    x = 4,068.38

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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.