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Finding the Fourth Proportional to 26,728.71, 40,099.55 and 8,008.71

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Solution

The fourth proportional to 26,728.71, 40,099.55 and 8,008.71 is: 12,015.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,728.71 : 40,099.55 = 8,008.71 : x
  2. Step 2: Convert to fraction form
    26,728.71/40,099.55 = 8,008.71/x
  3. Step 3: Cross multiply
    26,728.71x = 40,099.55 × 8,008.71
  4. Step 4: Simplify right side
    26,728.71x = 321,145,627.04
  5. Step 5: Solve for x
    x = 321,145,627.04/26,728.71
  6. Step 6: Final answer
    x = 12,015.01

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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.