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Finding the Fourth Proportional to 8,997.75, 13,491.39 and 3,451.47

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Solution

The fourth proportional to 8,997.75, 13,491.39 and 3,451.47 is: 5,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.75 : 13,491.39 = 3,451.47 : x
  2. Step 2: Convert to fraction form
    8,997.75/13,491.39 = 3,451.47/x
  3. Step 3: Cross multiply
    8,997.75x = 13,491.39 × 3,451.47
  4. Step 4: Simplify right side
    8,997.75x = 46,565,127.84
  5. Step 5: Solve for x
    x = 46,565,127.84/8,997.75
  6. Step 6: Final answer
    x = 5,175.20

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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.