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Finding the Fourth Proportional to 27,454.51, 37,886.97 and 15,354.97

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Solution

The fourth proportional to 27,454.51, 37,886.97 and 15,354.97 is: 21,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,454.51 : 37,886.97 = 15,354.97 : x
  2. Step 2: Convert to fraction form
    27,454.51/37,886.97 = 15,354.97/x
  3. Step 3: Cross multiply
    27,454.51x = 37,886.97 × 15,354.97
  4. Step 4: Simplify right side
    27,454.51x = 581,753,098.31
  5. Step 5: Solve for x
    x = 581,753,098.31/27,454.51
  6. Step 6: Final answer
    x = 21,189.71

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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.