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Finding the Third Proportional to 18,834.19 and 28,494.28

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Solution

The third proportional to 18,834.19 and 28,494.28 is: 43,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.19 : 28,494.28 = 28,494.28 : x
  2. Step 2: Convert to fraction form
    18,834.19/28,494.28 = 28,494.28/x
  3. Step 3: Cross multiply
    18,834.19x = 28,494.28 × 28,494.28
  4. Step 4: Simplify right side
    18,834.19x = 811,924,063.95
  5. Step 5: Solve for x
    x = 811,924,063.95/18,834.19
  6. Step 6: Final answer
    x = 43,109.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.