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Finding the Fourth Proportional to 6,695.80, 9,237.54 and 3,861.88

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Solution

The fourth proportional to 6,695.80, 9,237.54 and 3,861.88 is: 5,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,695.80 : 9,237.54 = 3,861.88 : x
  2. Step 2: Convert to fraction form
    6,695.80/9,237.54 = 3,861.88/x
  3. Step 3: Cross multiply
    6,695.80x = 9,237.54 × 3,861.88
  4. Step 4: Simplify right side
    6,695.80x = 35,674,270.98
  5. Step 5: Solve for x
    x = 35,674,270.98/6,695.80
  6. Step 6: Final answer
    x = 5,327.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.