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Finding the Fourth Proportional to 29,626, 40,887.72 and 16,883.78

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Solution

The fourth proportional to 29,626, 40,887.72 and 16,883.78 is: 23,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,626 : 40,887.72 = 16,883.78 : x
  2. Step 2: Convert to fraction form
    29,626/40,887.72 = 16,883.78/x
  3. Step 3: Cross multiply
    29,626x = 40,887.72 × 16,883.78
  4. Step 4: Simplify right side
    29,626x = 690,339,269.18
  5. Step 5: Solve for x
    x = 690,339,269.18/29,626
  6. Step 6: Final answer
    x = 23,301.80

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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.