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Finding the Fourth Proportional to 6,995,452.10, 9,653,469.03 and 3,897,815.40

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Solution

The fourth proportional to 6,995,452.10, 9,653,469.03 and 3,897,815.40 is: 5,378,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995,452.10 : 9,653,469.03 = 3,897,815.40 : x
  2. Step 2: Convert to fraction form
    6,995,452.10/9,653,469.03 = 3,897,815.40/x
  3. Step 3: Cross multiply
    6,995,452.10x = 9,653,469.03 × 3,897,815.40
  4. Step 4: Simplify right side
    6,995,452.10x = 37,627,440,248,557.05
  5. Step 5: Solve for x
    x = 37,627,440,248,557.05/6,995,452.10
  6. Step 6: Final answer
    x = 5,378,843.25

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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.