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Finding the Fourth Proportional to 8,775.36, 13,164.12 and 2,932.56

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Solution

The fourth proportional to 8,775.36, 13,164.12 and 2,932.56 is: 4,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.36 : 13,164.12 = 2,932.56 : x
  2. Step 2: Convert to fraction form
    8,775.36/13,164.12 = 2,932.56/x
  3. Step 3: Cross multiply
    8,775.36x = 13,164.12 × 2,932.56
  4. Step 4: Simplify right side
    8,775.36x = 38,604,571.75
  5. Step 5: Solve for x
    x = 38,604,571.75/8,775.36
  6. Step 6: Final answer
    x = 4,399.20

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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.