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Finding the Third Proportional to 15,865.50 and 22,286.25

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Solution

The third proportional to 15,865.50 and 22,286.25 is: 31,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.50 : 22,286.25 = 22,286.25 : x
  2. Step 2: Convert to fraction form
    15,865.50/22,286.25 = 22,286.25/x
  3. Step 3: Cross multiply
    15,865.50x = 22,286.25 × 22,286.25
  4. Step 4: Simplify right side
    15,865.50x = 496,676,939.06
  5. Step 5: Solve for x
    x = 496,676,939.06/15,865.50
  6. Step 6: Final answer
    x = 31,305.47

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.