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Finding the Fourth Proportional to 9,403.92, 14,104.05 and 3,561

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Solution

The fourth proportional to 9,403.92, 14,104.05 and 3,561 is: 5,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.92 : 14,104.05 = 3,561 : x
  2. Step 2: Convert to fraction form
    9,403.92/14,104.05 = 3,561/x
  3. Step 3: Cross multiply
    9,403.92x = 14,104.05 × 3,561
  4. Step 4: Simplify right side
    9,403.92x = 50,224,522.05
  5. Step 5: Solve for x
    x = 50,224,522.05/9,403.92
  6. Step 6: Final answer
    x = 5,340.81

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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.