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Finding the Third Proportional to 3,178.13 and 4,660.88

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Solution

The third proportional to 3,178.13 and 4,660.88 is: 6,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.13 : 4,660.88 = 4,660.88 : x
  2. Step 2: Convert to fraction form
    3,178.13/4,660.88 = 4,660.88/x
  3. Step 3: Cross multiply
    3,178.13x = 4,660.88 × 4,660.88
  4. Step 4: Simplify right side
    3,178.13x = 21,723,755.77
  5. Step 5: Solve for x
    x = 21,723,755.77/3,178.13
  6. Step 6: Final answer
    x = 6,835.40

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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.