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Finding the Fourth Proportional to 6,861.96, 9,471.96 and 4,173.24

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Solution

The fourth proportional to 6,861.96, 9,471.96 and 4,173.24 is: 5,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.96 : 9,471.96 = 4,173.24 : x
  2. Step 2: Convert to fraction form
    6,861.96/9,471.96 = 4,173.24/x
  3. Step 3: Cross multiply
    6,861.96x = 9,471.96 × 4,173.24
  4. Step 4: Simplify right side
    6,861.96x = 39,528,762.35
  5. Step 5: Solve for x
    x = 39,528,762.35/6,861.96
  6. Step 6: Final answer
    x = 5,760.56

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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.