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Finding the Fourth Proportional to 13,694.65, 20,526.91 and 5,373.11

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Solution

The fourth proportional to 13,694.65, 20,526.91 and 5,373.11 is: 8,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.65 : 20,526.91 = 5,373.11 : x
  2. Step 2: Convert to fraction form
    13,694.65/20,526.91 = 5,373.11/x
  3. Step 3: Cross multiply
    13,694.65x = 20,526.91 × 5,373.11
  4. Step 4: Simplify right side
    13,694.65x = 110,293,383.27
  5. Step 5: Solve for x
    x = 110,293,383.27/13,694.65
  6. Step 6: Final answer
    x = 8,053.76

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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.