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Finding the Third Proportional to 10,380 and 16,130

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Solution

The third proportional to 10,380 and 16,130 is: 25,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380 : 16,130 = 16,130 : x
  2. Step 2: Convert to fraction form
    10,380/16,130 = 16,130/x
  3. Step 3: Cross multiply
    10,380x = 16,130 × 16,130
  4. Step 4: Simplify right side
    10,380x = 260,176,900
  5. Step 5: Solve for x
    x = 260,176,900/10,380
  6. Step 6: Final answer
    x = 25,065.21

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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.