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Finding the Fourth Proportional to 9,906.87, 13,668.03 and 5,927.34

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Solution

The fourth proportional to 9,906.87, 13,668.03 and 5,927.34 is: 8,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.87 : 13,668.03 = 5,927.34 : x
  2. Step 2: Convert to fraction form
    9,906.87/13,668.03 = 5,927.34/x
  3. Step 3: Cross multiply
    9,906.87x = 13,668.03 × 5,927.34
  4. Step 4: Simplify right side
    9,906.87x = 81,015,060.94
  5. Step 5: Solve for x
    x = 81,015,060.94/9,906.87
  6. Step 6: Final answer
    x = 8,177.66

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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.