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Finding the Third Proportional to 18,493.95 and 39,943.76

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Solution

The third proportional to 18,493.95 and 39,943.76 is: 86,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.95 : 39,943.76 = 39,943.76 : x
  2. Step 2: Convert to fraction form
    18,493.95/39,943.76 = 39,943.76/x
  3. Step 3: Cross multiply
    18,493.95x = 39,943.76 × 39,943.76
  4. Step 4: Simplify right side
    18,493.95x = 1,595,503,788.18
  5. Step 5: Solve for x
    x = 1,595,503,788.18/18,493.95
  6. Step 6: Final answer
    x = 86,271.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.