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Finding the Fourth Proportional to 25,173.66, 34,739.78 and 13,843.88

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Solution

The fourth proportional to 25,173.66, 34,739.78 and 13,843.88 is: 19,104.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,173.66 : 34,739.78 = 13,843.88 : x
  2. Step 2: Convert to fraction form
    25,173.66/34,739.78 = 13,843.88/x
  3. Step 3: Cross multiply
    25,173.66x = 34,739.78 × 13,843.88
  4. Step 4: Simplify right side
    25,173.66x = 480,933,345.55
  5. Step 5: Solve for x
    x = 480,933,345.55/25,173.66
  6. Step 6: Final answer
    x = 19,104.63

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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.