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Finding the Fourth Proportional to 3,955.86, 5,920.02 and 2,394.99

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Solution

The fourth proportional to 3,955.86, 5,920.02 and 2,394.99 is: 3,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.86 : 5,920.02 = 2,394.99 : x
  2. Step 2: Convert to fraction form
    3,955.86/5,920.02 = 2,394.99/x
  3. Step 3: Cross multiply
    3,955.86x = 5,920.02 × 2,394.99
  4. Step 4: Simplify right side
    3,955.86x = 14,178,388.70
  5. Step 5: Solve for x
    x = 14,178,388.70/3,955.86
  6. Step 6: Final answer
    x = 3,584.15

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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.