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Finding the Fourth Proportional to 8,993.89, 12,411.84 and 5,014.90

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Solution

The fourth proportional to 8,993.89, 12,411.84 and 5,014.90 is: 6,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.89 : 12,411.84 = 5,014.90 : x
  2. Step 2: Convert to fraction form
    8,993.89/12,411.84 = 5,014.90/x
  3. Step 3: Cross multiply
    8,993.89x = 12,411.84 × 5,014.90
  4. Step 4: Simplify right side
    8,993.89x = 62,244,136.42
  5. Step 5: Solve for x
    x = 62,244,136.42/8,993.89
  6. Step 6: Final answer
    x = 6,920.71

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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.