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Finding the Third Proportional to 15,323 and 16,417

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Solution

The third proportional to 15,323 and 16,417 is: 17,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323 : 16,417 = 16,417 : x
  2. Step 2: Convert to fraction form
    15,323/16,417 = 16,417/x
  3. Step 3: Cross multiply
    15,323x = 16,417 × 16,417
  4. Step 4: Simplify right side
    15,323x = 269,517,889
  5. Step 5: Solve for x
    x = 269,517,889/15,323
  6. Step 6: Final answer
    x = 17,589.11

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.