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Finding the Fourth Proportional to 85,067.96, 127,621.04 and 25,908.30

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Solution

The fourth proportional to 85,067.96, 127,621.04 and 25,908.30 is: 38,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,067.96 : 127,621.04 = 25,908.30 : x
  2. Step 2: Convert to fraction form
    85,067.96/127,621.04 = 25,908.30/x
  3. Step 3: Cross multiply
    85,067.96x = 127,621.04 × 25,908.30
  4. Step 4: Simplify right side
    85,067.96x = 3,306,444,190.63
  5. Step 5: Solve for x
    x = 3,306,444,190.63/85,067.96
  6. Step 6: Final answer
    x = 38,868.27

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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.