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Finding the Fourth Proportional to 7,110.45, 10,668.45 and 2,949.41

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Solution

The fourth proportional to 7,110.45, 10,668.45 and 2,949.41 is: 4,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.45 : 10,668.45 = 2,949.41 : x
  2. Step 2: Convert to fraction form
    7,110.45/10,668.45 = 2,949.41/x
  3. Step 3: Cross multiply
    7,110.45x = 10,668.45 × 2,949.41
  4. Step 4: Simplify right side
    7,110.45x = 31,465,579.77
  5. Step 5: Solve for x
    x = 31,465,579.77/7,110.45
  6. Step 6: Final answer
    x = 4,425.26

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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.