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Finding the Fourth Proportional to 2,403.96, 3,323.10 and 2,381.88

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Solution

The fourth proportional to 2,403.96, 3,323.10 and 2,381.88 is: 3,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.96 : 3,323.10 = 2,381.88 : x
  2. Step 2: Convert to fraction form
    2,403.96/3,323.10 = 2,381.88/x
  3. Step 3: Cross multiply
    2,403.96x = 3,323.10 × 2,381.88
  4. Step 4: Simplify right side
    2,403.96x = 7,915,225.43
  5. Step 5: Solve for x
    x = 7,915,225.43/2,403.96
  6. Step 6: Final answer
    x = 3,292.58

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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.