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Finding the Third Proportional to 18,276.75 and 37,990.13

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Solution

The third proportional to 18,276.75 and 37,990.13 is: 78,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.75 : 37,990.13 = 37,990.13 : x
  2. Step 2: Convert to fraction form
    18,276.75/37,990.13 = 37,990.13/x
  3. Step 3: Cross multiply
    18,276.75x = 37,990.13 × 37,990.13
  4. Step 4: Simplify right side
    18,276.75x = 1,443,249,597.52
  5. Step 5: Solve for x
    x = 1,443,249,597.52/18,276.75
  6. Step 6: Final answer
    x = 78,966.42

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.