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Finding the Fourth Proportional to 5,433.66, 8,152.02 and 2,661.90

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Solution

The fourth proportional to 5,433.66, 8,152.02 and 2,661.90 is: 3,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,433.66 : 8,152.02 = 2,661.90 : x
  2. Step 2: Convert to fraction form
    5,433.66/8,152.02 = 2,661.90/x
  3. Step 3: Cross multiply
    5,433.66x = 8,152.02 × 2,661.90
  4. Step 4: Simplify right side
    5,433.66x = 21,699,862.04
  5. Step 5: Solve for x
    x = 21,699,862.04/5,433.66
  6. Step 6: Final answer
    x = 3,993.60

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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.