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Finding the Fourth Proportional to 3,325.97, 4,989.74 and 1,134.72

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Solution

The fourth proportional to 3,325.97, 4,989.74 and 1,134.72 is: 1,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.97 : 4,989.74 = 1,134.72 : x
  2. Step 2: Convert to fraction form
    3,325.97/4,989.74 = 1,134.72/x
  3. Step 3: Cross multiply
    3,325.97x = 4,989.74 × 1,134.72
  4. Step 4: Simplify right side
    3,325.97x = 5,661,952.10
  5. Step 5: Solve for x
    x = 5,661,952.10/3,325.97
  6. Step 6: Final answer
    x = 1,702.34

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1.5x scale

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.