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Finding the Fourth Proportional to 8,993.15, 13,481.51 and 3,146.57

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Solution

The fourth proportional to 8,993.15, 13,481.51 and 3,146.57 is: 4,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.15 : 13,481.51 = 3,146.57 : x
  2. Step 2: Convert to fraction form
    8,993.15/13,481.51 = 3,146.57/x
  3. Step 3: Cross multiply
    8,993.15x = 13,481.51 × 3,146.57
  4. Step 4: Simplify right side
    8,993.15x = 42,420,482.34
  5. Step 5: Solve for x
    x = 42,420,482.34/8,993.15
  6. Step 6: Final answer
    x = 4,716.98

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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.