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Finding the Fourth Proportional to 7,937.96, 11,906.46 and 3,554.24

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Solution

The fourth proportional to 7,937.96, 11,906.46 and 3,554.24 is: 5,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.96 : 11,906.46 = 3,554.24 : x
  2. Step 2: Convert to fraction form
    7,937.96/11,906.46 = 3,554.24/x
  3. Step 3: Cross multiply
    7,937.96x = 11,906.46 × 3,554.24
  4. Step 4: Simplify right side
    7,937.96x = 42,318,416.39
  5. Step 5: Solve for x
    x = 42,318,416.39/7,937.96
  6. Step 6: Final answer
    x = 5,331.15

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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.