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Finding the Fourth Proportional to 7,176.04, 10,764.52 and 1,910.97

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Solution

The fourth proportional to 7,176.04, 10,764.52 and 1,910.97 is: 2,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.04 : 10,764.52 = 1,910.97 : x
  2. Step 2: Convert to fraction form
    7,176.04/10,764.52 = 1,910.97/x
  3. Step 3: Cross multiply
    7,176.04x = 10,764.52 × 1,910.97
  4. Step 4: Simplify right side
    7,176.04x = 20,570,645.11
  5. Step 5: Solve for x
    x = 20,570,645.11/7,176.04
  6. Step 6: Final answer
    x = 2,866.57

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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.