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Finding the Fourth Proportional to 25,853.77, 38,789.02 and 12,696.92

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Solution

The fourth proportional to 25,853.77, 38,789.02 and 12,696.92 is: 19,049.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,853.77 : 38,789.02 = 12,696.92 : x
  2. Step 2: Convert to fraction form
    25,853.77/38,789.02 = 12,696.92/x
  3. Step 3: Cross multiply
    25,853.77x = 38,789.02 × 12,696.92
  4. Step 4: Simplify right side
    25,853.77x = 492,500,826.39
  5. Step 5: Solve for x
    x = 492,500,826.39/25,853.77
  6. Step 6: Final answer
    x = 19,049.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.