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Finding the Fourth Proportional to 5,861.16, 8,790.94 and 1,965.48

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Solution

The fourth proportional to 5,861.16, 8,790.94 and 1,965.48 is: 2,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.16 : 8,790.94 = 1,965.48 : x
  2. Step 2: Convert to fraction form
    5,861.16/8,790.94 = 1,965.48/x
  3. Step 3: Cross multiply
    5,861.16x = 8,790.94 × 1,965.48
  4. Step 4: Simplify right side
    5,861.16x = 17,278,416.75
  5. Step 5: Solve for x
    x = 17,278,416.75/5,861.16
  6. Step 6: Final answer
    x = 2,947.95

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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.