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Finding the Fourth Proportional to 21,773.88, 32,660.69 and 6,191.51

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Solution

The fourth proportional to 21,773.88, 32,660.69 and 6,191.51 is: 9,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.88 : 32,660.69 = 6,191.51 : x
  2. Step 2: Convert to fraction form
    21,773.88/32,660.69 = 6,191.51/x
  3. Step 3: Cross multiply
    21,773.88x = 32,660.69 × 6,191.51
  4. Step 4: Simplify right side
    21,773.88x = 202,218,794.48
  5. Step 5: Solve for x
    x = 202,218,794.48/21,773.88
  6. Step 6: Final answer
    x = 9,287.22

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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.