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Finding the Third Proportional to 16,430 and 25,491

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Solution

The third proportional to 16,430 and 25,491 is: 39,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,430 : 25,491 = 25,491 : x
  2. Step 2: Convert to fraction form
    16,430/25,491 = 25,491/x
  3. Step 3: Cross multiply
    16,430x = 25,491 × 25,491
  4. Step 4: Simplify right side
    16,430x = 649,791,081
  5. Step 5: Solve for x
    x = 649,791,081/16,430
  6. Step 6: Final answer
    x = 39,549.06

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.