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Finding the Fourth Proportional to 5,717.95, 7,890.83 and 3,328.05

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Solution

The fourth proportional to 5,717.95, 7,890.83 and 3,328.05 is: 4,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.95 : 7,890.83 = 3,328.05 : x
  2. Step 2: Convert to fraction form
    5,717.95/7,890.83 = 3,328.05/x
  3. Step 3: Cross multiply
    5,717.95x = 7,890.83 × 3,328.05
  4. Step 4: Simplify right side
    5,717.95x = 26,261,076.78
  5. Step 5: Solve for x
    x = 26,261,076.78/5,717.95
  6. Step 6: Final answer
    x = 4,592.74

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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.