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Finding the Third Proportional to 3,099 and 4,791

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Solution

The third proportional to 3,099 and 4,791 is: 7,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099 : 4,791 = 4,791 : x
  2. Step 2: Convert to fraction form
    3,099/4,791 = 4,791/x
  3. Step 3: Cross multiply
    3,099x = 4,791 × 4,791
  4. Step 4: Simplify right side
    3,099x = 22,953,681
  5. Step 5: Solve for x
    x = 22,953,681/3,099
  6. Step 6: Final answer
    x = 7,406.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.