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Finding the Fourth Proportional to 6,992,843.97, 9,650,568.31 and 4,239,795.11

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Solution

The fourth proportional to 6,992,843.97, 9,650,568.31 and 4,239,795.11 is: 5,851,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992,843.97 : 9,650,568.31 = 4,239,795.11 : x
  2. Step 2: Convert to fraction form
    6,992,843.97/9,650,568.31 = 4,239,795.11/x
  3. Step 3: Cross multiply
    6,992,843.97x = 9,650,568.31 × 4,239,795.11
  4. Step 4: Simplify right side
    6,992,843.97x = 40,916,432,342,985.89
  5. Step 5: Solve for x
    x = 40,916,432,342,985.89/6,992,843.97
  6. Step 6: Final answer
    x = 5,851,186.23

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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.