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Finding the Fourth Proportional to 7,194,930.62, 9,928,048.11 and 4,620,099.38

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Solution

The fourth proportional to 7,194,930.62, 9,928,048.11 and 4,620,099.38 is: 6,375,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194,930.62 : 9,928,048.11 = 4,620,099.38 : x
  2. Step 2: Convert to fraction form
    7,194,930.62/9,928,048.11 = 4,620,099.38/x
  3. Step 3: Cross multiply
    7,194,930.62x = 9,928,048.11 × 4,620,099.38
  4. Step 4: Simplify right side
    7,194,930.62x = 45,868,568,917,621.16
  5. Step 5: Solve for x
    x = 45,868,568,917,621.16/7,194,930.62
  6. Step 6: Final answer
    x = 6,375,123.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.