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Finding the Fourth Proportional to 68,313.84, 94,272.90 and 38,099.20

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Solution

The fourth proportional to 68,313.84, 94,272.90 and 38,099.20 is: 52,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,313.84 : 94,272.90 = 38,099.20 : x
  2. Step 2: Convert to fraction form
    68,313.84/94,272.90 = 38,099.20/x
  3. Step 3: Cross multiply
    68,313.84x = 94,272.90 × 38,099.20
  4. Step 4: Simplify right side
    68,313.84x = 3,591,722,071.68
  5. Step 5: Solve for x
    x = 3,591,722,071.68/68,313.84
  6. Step 6: Final answer
    x = 52,576.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.