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Finding the Fourth Proportional to 6,653,995.70, 9,976,701.20 and 2,610,891.98

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Solution

The fourth proportional to 6,653,995.70, 9,976,701.20 and 2,610,891.98 is: 3,914,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653,995.70 : 9,976,701.20 = 2,610,891.98 : x
  2. Step 2: Convert to fraction form
    6,653,995.70/9,976,701.20 = 2,610,891.98/x
  3. Step 3: Cross multiply
    6,653,995.70x = 9,976,701.20 × 2,610,891.98
  4. Step 4: Simplify right side
    6,653,995.70x = 26,048,089,149,936.38
  5. Step 5: Solve for x
    x = 26,048,089,149,936.38/6,653,995.70
  6. Step 6: Final answer
    x = 3,914,653.74

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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.