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Finding the Third Proportional to 25,689.50 and 38,361

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Solution

The third proportional to 25,689.50 and 38,361 is: 57,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689.50 : 38,361 = 38,361 : x
  2. Step 2: Convert to fraction form
    25,689.50/38,361 = 38,361/x
  3. Step 3: Cross multiply
    25,689.50x = 38,361 × 38,361
  4. Step 4: Simplify right side
    25,689.50x = 1,471,566,321
  5. Step 5: Solve for x
    x = 1,471,566,321/25,689.50
  6. Step 6: Final answer
    x = 57,282.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.