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Finding the Fourth Proportional to 27,387.81, 37,805.81 and 16,067.25

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Solution

The fourth proportional to 27,387.81, 37,805.81 and 16,067.25 is: 22,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,387.81 : 37,805.81 = 16,067.25 : x
  2. Step 2: Convert to fraction form
    27,387.81/37,805.81 = 16,067.25/x
  3. Step 3: Cross multiply
    27,387.81x = 37,805.81 × 16,067.25
  4. Step 4: Simplify right side
    27,387.81x = 607,435,320.39
  5. Step 5: Solve for x
    x = 607,435,320.39/27,387.81
  6. Step 6: Final answer
    x = 22,179.04

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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.