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Finding the Third Proportional to 4,786 and 8,900

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Solution

The third proportional to 4,786 and 8,900 is: 16,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786 : 8,900 = 8,900 : x
  2. Step 2: Convert to fraction form
    4,786/8,900 = 8,900/x
  3. Step 3: Cross multiply
    4,786x = 8,900 × 8,900
  4. Step 4: Simplify right side
    4,786x = 79,210,000
  5. Step 5: Solve for x
    x = 79,210,000/4,786
  6. Step 6: Final answer
    x = 16,550.36

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.