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Finding the Third Proportional to 18,565.88 and 40,518.56

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Solution

The third proportional to 18,565.88 and 40,518.56 is: 88,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.88 : 40,518.56 = 40,518.56 : x
  2. Step 2: Convert to fraction form
    18,565.88/40,518.56 = 40,518.56/x
  3. Step 3: Cross multiply
    18,565.88x = 40,518.56 × 40,518.56
  4. Step 4: Simplify right side
    18,565.88x = 1,641,753,907.07
  5. Step 5: Solve for x
    x = 1,641,753,907.07/18,565.88
  6. Step 6: Final answer
    x = 88,428.58

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.