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Finding the Third Proportional to 18,007 and 28,488

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Solution

The third proportional to 18,007 and 28,488 is: 45,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007 : 28,488 = 28,488 : x
  2. Step 2: Convert to fraction form
    18,007/28,488 = 28,488/x
  3. Step 3: Cross multiply
    18,007x = 28,488 × 28,488
  4. Step 4: Simplify right side
    18,007x = 811,566,144
  5. Step 5: Solve for x
    x = 811,566,144/18,007
  6. Step 6: Final answer
    x = 45,069.48

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.