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Finding the Third Proportional to 4,178.46 and 6,109.17

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Solution

The third proportional to 4,178.46 and 6,109.17 is: 8,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.46 : 6,109.17 = 6,109.17 : x
  2. Step 2: Convert to fraction form
    4,178.46/6,109.17 = 6,109.17/x
  3. Step 3: Cross multiply
    4,178.46x = 6,109.17 × 6,109.17
  4. Step 4: Simplify right side
    4,178.46x = 37,321,981.00
  5. Step 5: Solve for x
    x = 37,321,981.00/4,178.46
  6. Step 6: Final answer
    x = 8,931.99

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.