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Finding the Fourth Proportional to 34,395.81, 51,593.81 and 14,661.78

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Solution

The fourth proportional to 34,395.81, 51,593.81 and 14,661.78 is: 21,992.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,395.81 : 51,593.81 = 14,661.78 : x
  2. Step 2: Convert to fraction form
    34,395.81/51,593.81 = 14,661.78/x
  3. Step 3: Cross multiply
    34,395.81x = 51,593.81 × 14,661.78
  4. Step 4: Simplify right side
    34,395.81x = 756,457,091.58
  5. Step 5: Solve for x
    x = 756,457,091.58/34,395.81
  6. Step 6: Final answer
    x = 21,992.71

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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.