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Finding the Fourth Proportional to 22,356,843.70, 33,535,265.55 and 8,178,949.30

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Solution

The fourth proportional to 22,356,843.70, 33,535,265.55 and 8,178,949.30 is: 12,268,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,356,843.70 : 33,535,265.55 = 8,178,949.30 : x
  2. Step 2: Convert to fraction form
    22,356,843.70/33,535,265.55 = 8,178,949.30/x
  3. Step 3: Cross multiply
    22,356,843.70x = 33,535,265.55 × 8,178,949.30
  4. Step 4: Simplify right side
    22,356,843.70x = 274,283,236,695,486.62
  5. Step 5: Solve for x
    x = 274,283,236,695,486.62/22,356,843.70
  6. Step 6: Final answer
    x = 12,268,423.95

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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.