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Finding the Fourth Proportional to 8,369.12, 12,557.80 and 5,919.68

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Solution

The fourth proportional to 8,369.12, 12,557.80 and 5,919.68 is: 8,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.12 : 12,557.80 = 5,919.68 : x
  2. Step 2: Convert to fraction form
    8,369.12/12,557.80 = 5,919.68/x
  3. Step 3: Cross multiply
    8,369.12x = 12,557.80 × 5,919.68
  4. Step 4: Simplify right side
    8,369.12x = 74,338,157.50
  5. Step 5: Solve for x
    x = 74,338,157.50/8,369.12
  6. Step 6: Final answer
    x = 8,882.43

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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.