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Finding the Fourth Proportional to 8,997.87, 12,416.94 and 5,019.05

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Solution

The fourth proportional to 8,997.87, 12,416.94 and 5,019.05 is: 6,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.87 : 12,416.94 = 5,019.05 : x
  2. Step 2: Convert to fraction form
    8,997.87/12,416.94 = 5,019.05/x
  3. Step 3: Cross multiply
    8,997.87x = 12,416.94 × 5,019.05
  4. Step 4: Simplify right side
    8,997.87x = 62,321,180.62
  5. Step 5: Solve for x
    x = 62,321,180.62/8,997.87
  6. Step 6: Final answer
    x = 6,926.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.