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Finding the Fourth Proportional to 6,642,284.40, 9,942,431.40 and 4,752,716.40

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Solution

The fourth proportional to 6,642,284.40, 9,942,431.40 and 4,752,716.40 is: 7,114,052.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,284.40 : 9,942,431.40 = 4,752,716.40 : x
  2. Step 2: Convert to fraction form
    6,642,284.40/9,942,431.40 = 4,752,716.40/x
  3. Step 3: Cross multiply
    6,642,284.40x = 9,942,431.40 × 4,752,716.40
  4. Step 4: Simplify right side
    6,642,284.40x = 47,253,556,770,654.97
  5. Step 5: Solve for x
    x = 47,253,556,770,654.97/6,642,284.40
  6. Step 6: Final answer
    x = 7,114,052.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.