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Finding the Fourth Proportional to 8,808.15, 13,212.14 and 2,652.15

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Solution

The fourth proportional to 8,808.15, 13,212.14 and 2,652.15 is: 3,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.15 : 13,212.14 = 2,652.15 : x
  2. Step 2: Convert to fraction form
    8,808.15/13,212.14 = 2,652.15/x
  3. Step 3: Cross multiply
    8,808.15x = 13,212.14 × 2,652.15
  4. Step 4: Simplify right side
    8,808.15x = 35,040,577.10
  5. Step 5: Solve for x
    x = 35,040,577.10/8,808.15
  6. Step 6: Final answer
    x = 3,978.20

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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.