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Finding the Fourth Proportional to 5,731.96, 7,906.75 and 3,604.12

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Solution

The fourth proportional to 5,731.96, 7,906.75 and 3,604.12 is: 4,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.96 : 7,906.75 = 3,604.12 : x
  2. Step 2: Convert to fraction form
    5,731.96/7,906.75 = 3,604.12/x
  3. Step 3: Cross multiply
    5,731.96x = 7,906.75 × 3,604.12
  4. Step 4: Simplify right side
    5,731.96x = 28,496,873.07
  5. Step 5: Solve for x
    x = 28,496,873.07/5,731.96
  6. Step 6: Final answer
    x = 4,971.57

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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.