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Finding the Third Proportional to 9,624 and 19,724

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Solution

The third proportional to 9,624 and 19,724 is: 40,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,624 : 19,724 = 19,724 : x
  2. Step 2: Convert to fraction form
    9,624/19,724 = 19,724/x
  3. Step 3: Cross multiply
    9,624x = 19,724 × 19,724
  4. Step 4: Simplify right side
    9,624x = 389,036,176
  5. Step 5: Solve for x
    x = 389,036,176/9,624
  6. Step 6: Final answer
    x = 40,423.54

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.