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Finding the Fourth Proportional to 14,652,408.40, 21,972,391.80 and 7,081,694.80

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Solution

The fourth proportional to 14,652,408.40, 21,972,391.80 and 7,081,694.80 is: 10,619,535.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,408.40 : 21,972,391.80 = 7,081,694.80 : x
  2. Step 2: Convert to fraction form
    14,652,408.40/21,972,391.80 = 7,081,694.80/x
  3. Step 3: Cross multiply
    14,652,408.40x = 21,972,391.80 × 7,081,694.80
  4. Step 4: Simplify right side
    14,652,408.40x = 155,601,772,753,622.66
  5. Step 5: Solve for x
    x = 155,601,772,753,622.66/14,652,408.40
  6. Step 6: Final answer
    x = 10,619,535.61

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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.