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Finding the Third Proportional to 3,672.84 and 5,387.77

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Solution

The third proportional to 3,672.84 and 5,387.77 is: 7,903.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.84 : 5,387.77 = 5,387.77 : x
  2. Step 2: Convert to fraction form
    3,672.84/5,387.77 = 5,387.77/x
  3. Step 3: Cross multiply
    3,672.84x = 5,387.77 × 5,387.77
  4. Step 4: Simplify right side
    3,672.84x = 29,028,018.43
  5. Step 5: Solve for x
    x = 29,028,018.43/3,672.84
  6. Step 6: Final answer
    x = 7,903.42

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.