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Finding the Fourth Proportional to 16,998,959.43, 23,457,879.45 and 9,263,835.68

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Solution

The fourth proportional to 16,998,959.43, 23,457,879.45 and 9,263,835.68 is: 12,783,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,998,959.43 : 23,457,879.45 = 9,263,835.68 : x
  2. Step 2: Convert to fraction form
    16,998,959.43/23,457,879.45 = 9,263,835.68/x
  3. Step 3: Cross multiply
    16,998,959.43x = 23,457,879.45 × 9,263,835.68
  4. Step 4: Simplify right side
    16,998,959.43x = 217,309,940,508,759.38
  5. Step 5: Solve for x
    x = 217,309,940,508,759.38/16,998,959.43
  6. Step 6: Final answer
    x = 12,783,720.17

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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.