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Finding the Fourth Proportional to 6,712.50, 9,263.25 and 3,728.82

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Solution

The fourth proportional to 6,712.50, 9,263.25 and 3,728.82 is: 5,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.50 : 9,263.25 = 3,728.82 : x
  2. Step 2: Convert to fraction form
    6,712.50/9,263.25 = 3,728.82/x
  3. Step 3: Cross multiply
    6,712.50x = 9,263.25 × 3,728.82
  4. Step 4: Simplify right side
    6,712.50x = 34,540,991.87
  5. Step 5: Solve for x
    x = 34,540,991.87/6,712.50
  6. Step 6: Final answer
    x = 5,145.77

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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.