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Finding the Fourth Proportional to 3,153.11, 4,353.05 and 1,894.49

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Solution

The fourth proportional to 3,153.11, 4,353.05 and 1,894.49 is: 2,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.11 : 4,353.05 = 1,894.49 : x
  2. Step 2: Convert to fraction form
    3,153.11/4,353.05 = 1,894.49/x
  3. Step 3: Cross multiply
    3,153.11x = 4,353.05 × 1,894.49
  4. Step 4: Simplify right side
    3,153.11x = 8,246,811.65
  5. Step 5: Solve for x
    x = 8,246,811.65/3,153.11
  6. Step 6: Final answer
    x = 2,615.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.