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Finding the Third Proportional to 28,453 and 66,488

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Solution

The third proportional to 28,453 and 66,488 is: 155,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453 : 66,488 = 66,488 : x
  2. Step 2: Convert to fraction form
    28,453/66,488 = 66,488/x
  3. Step 3: Cross multiply
    28,453x = 66,488 × 66,488
  4. Step 4: Simplify right side
    28,453x = 4,420,654,144
  5. Step 5: Solve for x
    x = 4,420,654,144/28,453
  6. Step 6: Final answer
    x = 155,366.89

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.