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Finding the Fourth Proportional to 18,498.77, 27,747.42 and 10,195.25

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Solution

The fourth proportional to 18,498.77, 27,747.42 and 10,195.25 is: 15,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.77 : 27,747.42 = 10,195.25 : x
  2. Step 2: Convert to fraction form
    18,498.77/27,747.42 = 10,195.25/x
  3. Step 3: Cross multiply
    18,498.77x = 27,747.42 × 10,195.25
  4. Step 4: Simplify right side
    18,498.77x = 282,891,883.76
  5. Step 5: Solve for x
    x = 282,891,883.76/18,498.77
  6. Step 6: Final answer
    x = 15,292.47

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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.