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Finding the Fourth Proportional to 9,991.11, 14,974.11 and 4,726.11

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Solution

The fourth proportional to 9,991.11, 14,974.11 and 4,726.11 is: 7,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.11 : 14,974.11 = 4,726.11 : x
  2. Step 2: Convert to fraction form
    9,991.11/14,974.11 = 4,726.11/x
  3. Step 3: Cross multiply
    9,991.11x = 14,974.11 × 4,726.11
  4. Step 4: Simplify right side
    9,991.11x = 70,769,291.01
  5. Step 5: Solve for x
    x = 70,769,291.01/9,991.11
  6. Step 6: Final answer
    x = 7,083.23

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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.