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Finding the Third Proportional to 3,772.13 and 4,928.63

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Solution

The third proportional to 3,772.13 and 4,928.63 is: 6,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.13 : 4,928.63 = 4,928.63 : x
  2. Step 2: Convert to fraction form
    3,772.13/4,928.63 = 4,928.63/x
  3. Step 3: Cross multiply
    3,772.13x = 4,928.63 × 4,928.63
  4. Step 4: Simplify right side
    3,772.13x = 24,291,344.39
  5. Step 5: Solve for x
    x = 24,291,344.39/3,772.13
  6. Step 6: Final answer
    x = 6,439.70

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.