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Finding the Third Proportional to 8,784.50 and 15,619

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Solution

The third proportional to 8,784.50 and 15,619 is: 27,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.50 : 15,619 = 15,619 : x
  2. Step 2: Convert to fraction form
    8,784.50/15,619 = 15,619/x
  3. Step 3: Cross multiply
    8,784.50x = 15,619 × 15,619
  4. Step 4: Simplify right side
    8,784.50x = 243,953,161
  5. Step 5: Solve for x
    x = 243,953,161/8,784.50
  6. Step 6: Final answer
    x = 27,770.86

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.