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Finding the Third Proportional to 18,492 and 39,576

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Solution

The third proportional to 18,492 and 39,576 is: 84,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492 : 39,576 = 39,576 : x
  2. Step 2: Convert to fraction form
    18,492/39,576 = 39,576/x
  3. Step 3: Cross multiply
    18,492x = 39,576 × 39,576
  4. Step 4: Simplify right side
    18,492x = 1,566,259,776
  5. Step 5: Solve for x
    x = 1,566,259,776/18,492
  6. Step 6: Final answer
    x = 84,699.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.