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Finding the Fourth Proportional to 27,168.84, 40,753.32 and 7,447.68

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Solution

The fourth proportional to 27,168.84, 40,753.32 and 7,447.68 is: 11,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.84 : 40,753.32 = 7,447.68 : x
  2. Step 2: Convert to fraction form
    27,168.84/40,753.32 = 7,447.68/x
  3. Step 3: Cross multiply
    27,168.84x = 40,753.32 × 7,447.68
  4. Step 4: Simplify right side
    27,168.84x = 303,517,686.30
  5. Step 5: Solve for x
    x = 303,517,686.30/27,168.84
  6. Step 6: Final answer
    x = 11,171.54

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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.