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Finding the Fourth Proportional to 68,082.75, 93,954.20 and 38,274.75

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Solution

The fourth proportional to 68,082.75, 93,954.20 and 38,274.75 is: 52,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,082.75 : 93,954.20 = 38,274.75 : x
  2. Step 2: Convert to fraction form
    68,082.75/93,954.20 = 38,274.75/x
  3. Step 3: Cross multiply
    68,082.75x = 93,954.20 × 38,274.75
  4. Step 4: Simplify right side
    68,082.75x = 3,596,073,325.08
  5. Step 5: Solve for x
    x = 3,596,073,325.08/68,082.75
  6. Step 6: Final answer
    x = 52,819.16

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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.