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Finding the Fourth Proportional to 25,257.56, 34,853.56 and 13,927.28

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Solution

The fourth proportional to 25,257.56, 34,853.56 and 13,927.28 is: 19,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,257.56 : 34,853.56 = 13,927.28 : x
  2. Step 2: Convert to fraction form
    25,257.56/34,853.56 = 13,927.28/x
  3. Step 3: Cross multiply
    25,257.56x = 34,853.56 × 13,927.28
  4. Step 4: Simplify right side
    25,257.56x = 485,415,080.03
  5. Step 5: Solve for x
    x = 485,415,080.03/25,257.56
  6. Step 6: Final answer
    x = 19,218.61

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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.