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Finding the Fourth Proportional to 38,574.20, 57,731.70 and 26,910.20

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Solution

The fourth proportional to 38,574.20, 57,731.70 and 26,910.20 is: 40,274.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,574.20 : 57,731.70 = 26,910.20 : x
  2. Step 2: Convert to fraction form
    38,574.20/57,731.70 = 26,910.20/x
  3. Step 3: Cross multiply
    38,574.20x = 57,731.70 × 26,910.20
  4. Step 4: Simplify right side
    38,574.20x = 1,553,571,593.34
  5. Step 5: Solve for x
    x = 1,553,571,593.34/38,574.20
  6. Step 6: Final answer
    x = 40,274.89

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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.