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Finding the Fourth Proportional to 6,790,951.94, 9,368,748.78 and 3,850,149.02

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Solution

The fourth proportional to 6,790,951.94, 9,368,748.78 and 3,850,149.02 is: 5,311,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790,951.94 : 9,368,748.78 = 3,850,149.02 : x
  2. Step 2: Convert to fraction form
    6,790,951.94/9,368,748.78 = 3,850,149.02/x
  3. Step 3: Cross multiply
    6,790,951.94x = 9,368,748.78 × 3,850,149.02
  4. Step 4: Simplify right side
    6,790,951.94x = 36,071,078,933,943.20
  5. Step 5: Solve for x
    x = 36,071,078,933,943.20/6,790,951.94
  6. Step 6: Final answer
    x = 5,311,638.08

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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.