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Finding the Fourth Proportional to 25,791.75, 35,592.62 and 15,187.91

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Solution

The fourth proportional to 25,791.75, 35,592.62 and 15,187.91 is: 20,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,791.75 : 35,592.62 = 15,187.91 : x
  2. Step 2: Convert to fraction form
    25,791.75/35,592.62 = 15,187.91/x
  3. Step 3: Cross multiply
    25,791.75x = 35,592.62 × 15,187.91
  4. Step 4: Simplify right side
    25,791.75x = 540,577,255.32
  5. Step 5: Solve for x
    x = 540,577,255.32/25,791.75
  6. Step 6: Final answer
    x = 20,959.31

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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.