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Finding the Fourth Proportional to 6,627,676.92, 9,920,250.55 and 3,545,958.48

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Solution

The fourth proportional to 6,627,676.92, 9,920,250.55 and 3,545,958.48 is: 5,307,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627,676.92 : 9,920,250.55 = 3,545,958.48 : x
  2. Step 2: Convert to fraction form
    6,627,676.92/9,920,250.55 = 3,545,958.48/x
  3. Step 3: Cross multiply
    6,627,676.92x = 9,920,250.55 × 3,545,958.48
  4. Step 4: Simplify right side
    6,627,676.92x = 35,176,796,561,497.17
  5. Step 5: Solve for x
    x = 35,176,796,561,497.17/6,627,676.92
  6. Step 6: Final answer
    x = 5,307,560.55

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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.