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Finding the Fourth Proportional to 6,641,818.74, 9,965,877.39 and 3,951,458.82

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Solution

The fourth proportional to 6,641,818.74, 9,965,877.39 and 3,951,458.82 is: 5,929,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641,818.74 : 9,965,877.39 = 3,951,458.82 : x
  2. Step 2: Convert to fraction form
    6,641,818.74/9,965,877.39 = 3,951,458.82/x
  3. Step 3: Cross multiply
    6,641,818.74x = 9,965,877.39 × 3,951,458.82
  4. Step 4: Simplify right side
    6,641,818.74x = 39,379,754,111,754.08
  5. Step 5: Solve for x
    x = 39,379,754,111,754.08/6,641,818.74
  6. Step 6: Final answer
    x = 5,929,061.85

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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.