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Finding the Fourth Proportional to 8,775.90, 13,163.04 and 5,488.92

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Solution

The fourth proportional to 8,775.90, 13,163.04 and 5,488.92 is: 8,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.90 : 13,163.04 = 5,488.92 : x
  2. Step 2: Convert to fraction form
    8,775.90/13,163.04 = 5,488.92/x
  3. Step 3: Cross multiply
    8,775.90x = 13,163.04 × 5,488.92
  4. Step 4: Simplify right side
    8,775.90x = 72,250,873.52
  5. Step 5: Solve for x
    x = 72,250,873.52/8,775.90
  6. Step 6: Final answer
    x = 8,232.87

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1.5x scale

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.