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Finding the Fourth Proportional to 80,698.94, 121,067.85 and 25,294.94

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Solution

The fourth proportional to 80,698.94, 121,067.85 and 25,294.94 is: 37,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,698.94 : 121,067.85 = 25,294.94 : x
  2. Step 2: Convert to fraction form
    80,698.94/121,067.85 = 25,294.94/x
  3. Step 3: Cross multiply
    80,698.94x = 121,067.85 × 25,294.94
  4. Step 4: Simplify right side
    80,698.94x = 3,062,404,001.68
  5. Step 5: Solve for x
    x = 3,062,404,001.68/80,698.94
  6. Step 6: Final answer
    x = 37,948.50

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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.