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Finding the Fourth Proportional to 3,993.46, 5,981.46 and 3,292.25

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Solution

The fourth proportional to 3,993.46, 5,981.46 and 3,292.25 is: 4,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.46 : 5,981.46 = 3,292.25 : x
  2. Step 2: Convert to fraction form
    3,993.46/5,981.46 = 3,292.25/x
  3. Step 3: Cross multiply
    3,993.46x = 5,981.46 × 3,292.25
  4. Step 4: Simplify right side
    3,993.46x = 19,692,482.75
  5. Step 5: Solve for x
    x = 19,692,482.75/3,993.46
  6. Step 6: Final answer
    x = 4,931.19

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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.