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Finding the Fourth Proportional to 19,958.97, 29,922.22 and 7,472

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Solution

The fourth proportional to 19,958.97, 29,922.22 and 7,472 is: 11,201.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.97 : 29,922.22 = 7,472 : x
  2. Step 2: Convert to fraction form
    19,958.97/29,922.22 = 7,472/x
  3. Step 3: Cross multiply
    19,958.97x = 29,922.22 × 7,472
  4. Step 4: Simplify right side
    19,958.97x = 223,578,827.84
  5. Step 5: Solve for x
    x = 223,578,827.84/19,958.97
  6. Step 6: Final answer
    x = 11,201.92

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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.