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Finding the Third Proportional to 25,315 and 54,523

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Solution

The third proportional to 25,315 and 54,523 is: 117,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,315 : 54,523 = 54,523 : x
  2. Step 2: Convert to fraction form
    25,315/54,523 = 54,523/x
  3. Step 3: Cross multiply
    25,315x = 54,523 × 54,523
  4. Step 4: Simplify right side
    25,315x = 2,972,757,529
  5. Step 5: Solve for x
    x = 2,972,757,529/25,315
  6. Step 6: Final answer
    x = 117,430.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.