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Finding the Third Proportional to 4,077.84 and 6,219.28

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Solution

The third proportional to 4,077.84 and 6,219.28 is: 9,485.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.84 : 6,219.28 = 6,219.28 : x
  2. Step 2: Convert to fraction form
    4,077.84/6,219.28 = 6,219.28/x
  3. Step 3: Cross multiply
    4,077.84x = 6,219.28 × 6,219.28
  4. Step 4: Simplify right side
    4,077.84x = 38,679,459.27
  5. Step 5: Solve for x
    x = 38,679,459.27/4,077.84
  6. Step 6: Final answer
    x = 9,485.27

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.