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Finding the Third Proportional to 15,489.50 and 24,619

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Solution

The third proportional to 15,489.50 and 24,619 is: 39,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489.50 : 24,619 = 24,619 : x
  2. Step 2: Convert to fraction form
    15,489.50/24,619 = 24,619/x
  3. Step 3: Cross multiply
    15,489.50x = 24,619 × 24,619
  4. Step 4: Simplify right side
    15,489.50x = 606,095,161
  5. Step 5: Solve for x
    x = 606,095,161/15,489.50
  6. Step 6: Final answer
    x = 39,129.42

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.