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Finding the Fourth Proportional to 8,860.11, 13,281.05 and 3,932.07

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Solution

The fourth proportional to 8,860.11, 13,281.05 and 3,932.07 is: 5,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.11 : 13,281.05 = 3,932.07 : x
  2. Step 2: Convert to fraction form
    8,860.11/13,281.05 = 3,932.07/x
  3. Step 3: Cross multiply
    8,860.11x = 13,281.05 × 3,932.07
  4. Step 4: Simplify right side
    8,860.11x = 52,221,998.61
  5. Step 5: Solve for x
    x = 52,221,998.61/8,860.11
  6. Step 6: Final answer
    x = 5,894.06

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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.