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Finding the Third Proportional to 4,786 and 7,959

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Solution

The third proportional to 4,786 and 7,959 is: 13,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786 : 7,959 = 7,959 : x
  2. Step 2: Convert to fraction form
    4,786/7,959 = 7,959/x
  3. Step 3: Cross multiply
    4,786x = 7,959 × 7,959
  4. Step 4: Simplify right side
    4,786x = 63,345,681
  5. Step 5: Solve for x
    x = 63,345,681/4,786
  6. Step 6: Final answer
    x = 13,235.62

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.