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Finding the Fourth Proportional to 25,359.84, 34,994.16 and 20,067.84

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Solution

The fourth proportional to 25,359.84, 34,994.16 and 20,067.84 is: 27,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,359.84 : 34,994.16 = 20,067.84 : x
  2. Step 2: Convert to fraction form
    25,359.84/34,994.16 = 20,067.84/x
  3. Step 3: Cross multiply
    25,359.84x = 34,994.16 × 20,067.84
  4. Step 4: Simplify right side
    25,359.84x = 702,257,203.81
  5. Step 5: Solve for x
    x = 702,257,203.81/25,359.84
  6. Step 6: Final answer
    x = 27,691.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.