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Finding the Third Proportional to 28,776 and 63,344

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Solution

The third proportional to 28,776 and 63,344 is: 139,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776 : 63,344 = 63,344 : x
  2. Step 2: Convert to fraction form
    28,776/63,344 = 63,344/x
  3. Step 3: Cross multiply
    28,776x = 63,344 × 63,344
  4. Step 4: Simplify right side
    28,776x = 4,012,462,336
  5. Step 5: Solve for x
    x = 4,012,462,336/28,776
  6. Step 6: Final answer
    x = 139,437.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.