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Finding the Third Proportional to 18,624.38 and 40,730.25

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Solution

The third proportional to 18,624.38 and 40,730.25 is: 89,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.38 : 40,730.25 = 40,730.25 : x
  2. Step 2: Convert to fraction form
    18,624.38/40,730.25 = 40,730.25/x
  3. Step 3: Cross multiply
    18,624.38x = 40,730.25 × 40,730.25
  4. Step 4: Simplify right side
    18,624.38x = 1,658,953,265.06
  5. Step 5: Solve for x
    x = 1,658,953,265.06/18,624.38
  6. Step 6: Final answer
    x = 89,074.31

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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.