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Finding the Fourth Proportional to 20,383.92, 30,526.62 and 11,592.18

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Solution

The fourth proportional to 20,383.92, 30,526.62 and 11,592.18 is: 17,360.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.92 : 30,526.62 = 11,592.18 : x
  2. Step 2: Convert to fraction form
    20,383.92/30,526.62 = 11,592.18/x
  3. Step 3: Cross multiply
    20,383.92x = 30,526.62 × 11,592.18
  4. Step 4: Simplify right side
    20,383.92x = 353,870,073.83
  5. Step 5: Solve for x
    x = 353,870,073.83/20,383.92
  6. Step 6: Final answer
    x = 17,360.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.