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Finding the Fourth Proportional to 19,682.76, 29,527.02 and 7,993.56

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Solution

The fourth proportional to 19,682.76, 29,527.02 and 7,993.56 is: 11,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682.76 : 29,527.02 = 7,993.56 : x
  2. Step 2: Convert to fraction form
    19,682.76/29,527.02 = 7,993.56/x
  3. Step 3: Cross multiply
    19,682.76x = 29,527.02 × 7,993.56
  4. Step 4: Simplify right side
    19,682.76x = 236,026,005.99
  5. Step 5: Solve for x
    x = 236,026,005.99/19,682.76
  6. Step 6: Final answer
    x = 11,991.51

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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.