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Finding the Fourth Proportional to 7,922.63, 11,883.81 and 2,728.37

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Solution

The fourth proportional to 7,922.63, 11,883.81 and 2,728.37 is: 4,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.63 : 11,883.81 = 2,728.37 : x
  2. Step 2: Convert to fraction form
    7,922.63/11,883.81 = 2,728.37/x
  3. Step 3: Cross multiply
    7,922.63x = 11,883.81 × 2,728.37
  4. Step 4: Simplify right side
    7,922.63x = 32,423,430.69
  5. Step 5: Solve for x
    x = 32,423,430.69/7,922.63
  6. Step 6: Final answer
    x = 4,092.51

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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.