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Finding the Fourth Proportional to 29,191.00, 40,293.09 and 21,634.91

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Solution

The fourth proportional to 29,191.00, 40,293.09 and 21,634.91 is: 29,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,191.00 : 40,293.09 = 21,634.91 : x
  2. Step 2: Convert to fraction form
    29,191.00/40,293.09 = 21,634.91/x
  3. Step 3: Cross multiply
    29,191.00x = 40,293.09 × 21,634.91
  4. Step 4: Simplify right side
    29,191.00x = 871,737,476.50
  5. Step 5: Solve for x
    x = 871,737,476.50/29,191.00
  6. Step 6: Final answer
    x = 29,863.23

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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.