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Finding the Fourth Proportional to 13,926.22, 20,865.02 and 11,601.16

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Solution

The fourth proportional to 13,926.22, 20,865.02 and 11,601.16 is: 17,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.22 : 20,865.02 = 11,601.16 : x
  2. Step 2: Convert to fraction form
    13,926.22/20,865.02 = 11,601.16/x
  3. Step 3: Cross multiply
    13,926.22x = 20,865.02 × 11,601.16
  4. Step 4: Simplify right side
    13,926.22x = 242,058,325.25
  5. Step 5: Solve for x
    x = 242,058,325.25/13,926.22
  6. Step 6: Final answer
    x = 17,381.48

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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.