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Finding the Fourth Proportional to 5,861.88, 8,796.28 and 2,166.72

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Solution

The fourth proportional to 5,861.88, 8,796.28 and 2,166.72 is: 3,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.88 : 8,796.28 = 2,166.72 : x
  2. Step 2: Convert to fraction form
    5,861.88/8,796.28 = 2,166.72/x
  3. Step 3: Cross multiply
    5,861.88x = 8,796.28 × 2,166.72
  4. Step 4: Simplify right side
    5,861.88x = 19,059,075.80
  5. Step 5: Solve for x
    x = 19,059,075.80/5,861.88
  6. Step 6: Final answer
    x = 3,251.36

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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.