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Finding the Fourth Proportional to 25,398.93, 35,067.47 and 15,842.65

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Solution

The fourth proportional to 25,398.93, 35,067.47 and 15,842.65 is: 21,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,398.93 : 35,067.47 = 15,842.65 : x
  2. Step 2: Convert to fraction form
    25,398.93/35,067.47 = 15,842.65/x
  3. Step 3: Cross multiply
    25,398.93x = 35,067.47 × 15,842.65
  4. Step 4: Simplify right side
    25,398.93x = 555,561,546.12
  5. Step 5: Solve for x
    x = 555,561,546.12/25,398.93
  6. Step 6: Final answer
    x = 21,873.43

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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.