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Finding the Third Proportional to 8,914.50 and 18,924

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Solution

The third proportional to 8,914.50 and 18,924 is: 40,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.50 : 18,924 = 18,924 : x
  2. Step 2: Convert to fraction form
    8,914.50/18,924 = 18,924/x
  3. Step 3: Cross multiply
    8,914.50x = 18,924 × 18,924
  4. Step 4: Simplify right side
    8,914.50x = 358,117,776
  5. Step 5: Solve for x
    x = 358,117,776/8,914.50
  6. Step 6: Final answer
    x = 40,172.50

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.