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Finding the Fourth Proportional to 22,991.30, 31,731.11 and 14,041.00

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Solution

The fourth proportional to 22,991.30, 31,731.11 and 14,041.00 is: 19,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.30 : 31,731.11 = 14,041.00 : x
  2. Step 2: Convert to fraction form
    22,991.30/31,731.11 = 14,041.00/x
  3. Step 3: Cross multiply
    22,991.30x = 31,731.11 × 14,041.00
  4. Step 4: Simplify right side
    22,991.30x = 445,536,537.62
  5. Step 5: Solve for x
    x = 445,536,537.62/22,991.30
  6. Step 6: Final answer
    x = 19,378.48

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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.