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Finding the Fourth Proportional to 6,861.56, 9,469.18 and 4,473.08

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Solution

The fourth proportional to 6,861.56, 9,469.18 and 4,473.08 is: 6,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.56 : 9,469.18 = 4,473.08 : x
  2. Step 2: Convert to fraction form
    6,861.56/9,469.18 = 4,473.08/x
  3. Step 3: Cross multiply
    6,861.56x = 9,469.18 × 4,473.08
  4. Step 4: Simplify right side
    6,861.56x = 42,356,354.42
  5. Step 5: Solve for x
    x = 42,356,354.42/6,861.56
  6. Step 6: Final answer
    x = 6,172.99

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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.