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Finding the Third Proportional to 18,328.46 and 40,159.71

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Solution

The third proportional to 18,328.46 and 40,159.71 is: 87,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.46 : 40,159.71 = 40,159.71 : x
  2. Step 2: Convert to fraction form
    18,328.46/40,159.71 = 40,159.71/x
  3. Step 3: Cross multiply
    18,328.46x = 40,159.71 × 40,159.71
  4. Step 4: Simplify right side
    18,328.46x = 1,612,801,911.96
  5. Step 5: Solve for x
    x = 1,612,801,911.96/18,328.46
  6. Step 6: Final answer
    x = 87,994.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.