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Finding the Fourth Proportional to 6,995,460.80, 9,653,481.02 and 3,897,824.08

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Solution

The fourth proportional to 6,995,460.80, 9,653,481.02 and 3,897,824.08 is: 5,378,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995,460.80 : 9,653,481.02 = 3,897,824.08 : x
  2. Step 2: Convert to fraction form
    6,995,460.80/9,653,481.02 = 3,897,824.08/x
  3. Step 3: Cross multiply
    6,995,460.80x = 9,653,481.02 × 3,897,824.08
  4. Step 4: Simplify right side
    6,995,460.80x = 37,627,570,775,578.96
  5. Step 5: Solve for x
    x = 37,627,570,775,578.96/6,995,460.80
  6. Step 6: Final answer
    x = 5,378,855.21

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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.