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Finding the Third Proportional to 5,624 and 8,130

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Solution

The third proportional to 5,624 and 8,130 is: 11,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624 : 8,130 = 8,130 : x
  2. Step 2: Convert to fraction form
    5,624/8,130 = 8,130/x
  3. Step 3: Cross multiply
    5,624x = 8,130 × 8,130
  4. Step 4: Simplify right side
    5,624x = 66,096,900
  5. Step 5: Solve for x
    x = 66,096,900/5,624
  6. Step 6: Final answer
    x = 11,752.65

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.