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Finding the Fourth Proportional to 38,016.20, 57,016.20 and 16,956.20

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Solution

The fourth proportional to 38,016.20, 57,016.20 and 16,956.20 is: 25,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,016.20 : 57,016.20 = 16,956.20 : x
  2. Step 2: Convert to fraction form
    38,016.20/57,016.20 = 16,956.20/x
  3. Step 3: Cross multiply
    38,016.20x = 57,016.20 × 16,956.20
  4. Step 4: Simplify right side
    38,016.20x = 966,778,090.44
  5. Step 5: Solve for x
    x = 966,778,090.44/38,016.20
  6. Step 6: Final answer
    x = 25,430.69

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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.