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Finding the Fourth Proportional to 8,993.18, 13,489.78 and 5,089.52

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Solution

The fourth proportional to 8,993.18, 13,489.78 and 5,089.52 is: 7,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.18 : 13,489.78 = 5,089.52 : x
  2. Step 2: Convert to fraction form
    8,993.18/13,489.78 = 5,089.52/x
  3. Step 3: Cross multiply
    8,993.18x = 13,489.78 × 5,089.52
  4. Step 4: Simplify right side
    8,993.18x = 68,656,505.11
  5. Step 5: Solve for x
    x = 68,656,505.11/8,993.18
  6. Step 6: Final answer
    x = 7,634.29

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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.