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Finding the Fourth Proportional to 6,668,922.22, 9,198,034.79 and 5,740,210.55

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Solution

The fourth proportional to 6,668,922.22, 9,198,034.79 and 5,740,210.55 is: 7,917,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668,922.22 : 9,198,034.79 = 5,740,210.55 : x
  2. Step 2: Convert to fraction form
    6,668,922.22/9,198,034.79 = 5,740,210.55/x
  3. Step 3: Cross multiply
    6,668,922.22x = 9,198,034.79 × 5,740,210.55
  4. Step 4: Simplify right side
    6,668,922.22x = 52,798,656,283,380.12
  5. Step 5: Solve for x
    x = 52,798,656,283,380.12/6,668,922.22
  6. Step 6: Final answer
    x = 7,917,119.82

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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.