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Finding the Fourth Proportional to 89,859.39, 134,789.08 and 27,521.79

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Solution

The fourth proportional to 89,859.39, 134,789.08 and 27,521.79 is: 41,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,859.39 : 134,789.08 = 27,521.79 : x
  2. Step 2: Convert to fraction form
    89,859.39/134,789.08 = 27,521.79/x
  3. Step 3: Cross multiply
    89,859.39x = 134,789.08 × 27,521.79
  4. Step 4: Simplify right side
    89,859.39x = 3,709,636,754.05
  5. Step 5: Solve for x
    x = 3,709,636,754.05/89,859.39
  6. Step 6: Final answer
    x = 41,282.68

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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.