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Finding the Third Proportional to 25,680 and 39,417

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Solution

The third proportional to 25,680 and 39,417 is: 60,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680 : 39,417 = 39,417 : x
  2. Step 2: Convert to fraction form
    25,680/39,417 = 39,417/x
  3. Step 3: Cross multiply
    25,680x = 39,417 × 39,417
  4. Step 4: Simplify right side
    25,680x = 1,553,699,889
  5. Step 5: Solve for x
    x = 1,553,699,889/25,680
  6. Step 6: Final answer
    x = 60,502.33

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.