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Finding the Fourth Proportional to 68,965.14, 95,149 and 38,746.27

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Solution

The fourth proportional to 68,965.14, 95,149 and 38,746.27 is: 53,456.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,965.14 : 95,149 = 38,746.27 : x
  2. Step 2: Convert to fraction form
    68,965.14/95,149 = 38,746.27/x
  3. Step 3: Cross multiply
    68,965.14x = 95,149 × 38,746.27
  4. Step 4: Simplify right side
    68,965.14x = 3,686,668,844.23
  5. Step 5: Solve for x
    x = 3,686,668,844.23/68,965.14
  6. Step 6: Final answer
    x = 53,456.99

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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.