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Finding the Fourth Proportional to 8,997.68, 13,505.94 and 4,321.69

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Solution

The fourth proportional to 8,997.68, 13,505.94 and 4,321.69 is: 6,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.68 : 13,505.94 = 4,321.69 : x
  2. Step 2: Convert to fraction form
    8,997.68/13,505.94 = 4,321.69/x
  3. Step 3: Cross multiply
    8,997.68x = 13,505.94 × 4,321.69
  4. Step 4: Simplify right side
    8,997.68x = 58,368,452.07
  5. Step 5: Solve for x
    x = 58,368,452.07/8,997.68
  6. Step 6: Final answer
    x = 6,487.05

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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.