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Finding the Fourth Proportional to 8,313.72, 11,446.74 and 7,052.16

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Solution

The fourth proportional to 8,313.72, 11,446.74 and 7,052.16 is: 9,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.72 : 11,446.74 = 7,052.16 : x
  2. Step 2: Convert to fraction form
    8,313.72/11,446.74 = 7,052.16/x
  3. Step 3: Cross multiply
    8,313.72x = 11,446.74 × 7,052.16
  4. Step 4: Simplify right side
    8,313.72x = 80,724,241.96
  5. Step 5: Solve for x
    x = 80,724,241.96/8,313.72
  6. Step 6: Final answer
    x = 9,709.76

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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.