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Finding the Third Proportional to 25,160 and 38,680

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Solution

The third proportional to 25,160 and 38,680 is: 59,465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,160 : 38,680 = 38,680 : x
  2. Step 2: Convert to fraction form
    25,160/38,680 = 38,680/x
  3. Step 3: Cross multiply
    25,160x = 38,680 × 38,680
  4. Step 4: Simplify right side
    25,160x = 1,496,142,400
  5. Step 5: Solve for x
    x = 1,496,142,400/25,160
  6. Step 6: Final answer
    x = 59,465.12

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.