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Finding the Third Proportional to 16,553 and 26,429

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Solution

The third proportional to 16,553 and 26,429 is: 42,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,553 : 26,429 = 26,429 : x
  2. Step 2: Convert to fraction form
    16,553/26,429 = 26,429/x
  3. Step 3: Cross multiply
    16,553x = 26,429 × 26,429
  4. Step 4: Simplify right side
    16,553x = 698,492,041
  5. Step 5: Solve for x
    x = 698,492,041/16,553
  6. Step 6: Final answer
    x = 42,197.31

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.