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Finding the Fourth Proportional to 8,997.45, 13,480.32 and 8,018.97

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Solution

The fourth proportional to 8,997.45, 13,480.32 and 8,018.97 is: 12,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.45 : 13,480.32 = 8,018.97 : x
  2. Step 2: Convert to fraction form
    8,997.45/13,480.32 = 8,018.97/x
  3. Step 3: Cross multiply
    8,997.45x = 13,480.32 × 8,018.97
  4. Step 4: Simplify right side
    8,997.45x = 108,098,261.19
  5. Step 5: Solve for x
    x = 108,098,261.19/8,997.45
  6. Step 6: Final answer
    x = 12,014.33

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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.