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Finding the Fourth Proportional to 6,717.05, 10,071.66 and 4,939.17

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Solution

The fourth proportional to 6,717.05, 10,071.66 and 4,939.17 is: 7,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.05 : 10,071.66 = 4,939.17 : x
  2. Step 2: Convert to fraction form
    6,717.05/10,071.66 = 4,939.17/x
  3. Step 3: Cross multiply
    6,717.05x = 10,071.66 × 4,939.17
  4. Step 4: Simplify right side
    6,717.05x = 49,745,615.74
  5. Step 5: Solve for x
    x = 49,745,615.74/6,717.05
  6. Step 6: Final answer
    x = 7,405.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.