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Finding the Fourth Proportional to 7,766,997.72, 11,650,963.64 and 2,375,694.85

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Solution

The fourth proportional to 7,766,997.72, 11,650,963.64 and 2,375,694.85 is: 3,563,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766,997.72 : 11,650,963.64 = 2,375,694.85 : x
  2. Step 2: Convert to fraction form
    7,766,997.72/11,650,963.64 = 2,375,694.85/x
  3. Step 3: Cross multiply
    7,766,997.72x = 11,650,963.64 × 2,375,694.85
  4. Step 4: Simplify right side
    7,766,997.72x = 27,679,134,317,085.26
  5. Step 5: Solve for x
    x = 27,679,134,317,085.26/7,766,997.72
  6. Step 6: Final answer
    x = 3,563,685.13

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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.