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Finding the Fourth Proportional to 38,839.92, 58,274.64 and 15,482.88

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Solution

The fourth proportional to 38,839.92, 58,274.64 and 15,482.88 is: 23,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,839.92 : 58,274.64 = 15,482.88 : x
  2. Step 2: Convert to fraction form
    38,839.92/58,274.64 = 15,482.88/x
  3. Step 3: Cross multiply
    38,839.92x = 58,274.64 × 15,482.88
  4. Step 4: Simplify right side
    38,839.92x = 902,259,258.16
  5. Step 5: Solve for x
    x = 902,259,258.16/38,839.92
  6. Step 6: Final answer
    x = 23,230.20

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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.