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Finding the Fourth Proportional to 5,865.22, 8,790.81 and 4,100.59

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Solution

The fourth proportional to 5,865.22, 8,790.81 and 4,100.59 is: 6,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.22 : 8,790.81 = 4,100.59 : x
  2. Step 2: Convert to fraction form
    5,865.22/8,790.81 = 4,100.59/x
  3. Step 3: Cross multiply
    5,865.22x = 8,790.81 × 4,100.59
  4. Step 4: Simplify right side
    5,865.22x = 36,047,507.58
  5. Step 5: Solve for x
    x = 36,047,507.58/5,865.22
  6. Step 6: Final answer
    x = 6,145.98

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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.