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Finding the Fourth Proportional to 19,950.62, 29,935.02 and 7,471.61

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Solution

The fourth proportional to 19,950.62, 29,935.02 and 7,471.61 is: 11,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.62 : 29,935.02 = 7,471.61 : x
  2. Step 2: Convert to fraction form
    19,950.62/29,935.02 = 7,471.61/x
  3. Step 3: Cross multiply
    19,950.62x = 29,935.02 × 7,471.61
  4. Step 4: Simplify right side
    19,950.62x = 223,662,645.11
  5. Step 5: Solve for x
    x = 223,662,645.11/19,950.62
  6. Step 6: Final answer
    x = 11,210.81

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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.