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Finding the Third Proportional to 15,726 and 25,365

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Solution

The third proportional to 15,726 and 25,365 is: 40,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726 : 25,365 = 25,365 : x
  2. Step 2: Convert to fraction form
    15,726/25,365 = 25,365/x
  3. Step 3: Cross multiply
    15,726x = 25,365 × 25,365
  4. Step 4: Simplify right side
    15,726x = 643,383,225
  5. Step 5: Solve for x
    x = 643,383,225/15,726
  6. Step 6: Final answer
    x = 40,912.07

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.