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Finding the Third Proportional to 4,880 and 8,788

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Solution

The third proportional to 4,880 and 8,788 is: 15,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880 : 8,788 = 8,788 : x
  2. Step 2: Convert to fraction form
    4,880/8,788 = 8,788/x
  3. Step 3: Cross multiply
    4,880x = 8,788 × 8,788
  4. Step 4: Simplify right side
    4,880x = 77,228,944
  5. Step 5: Solve for x
    x = 77,228,944/4,880
  6. Step 6: Final answer
    x = 15,825.60

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.