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Finding the Fourth Proportional to 21,503.88, 32,254.20 and 12,794.22

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Solution

The fourth proportional to 21,503.88, 32,254.20 and 12,794.22 is: 19,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.88 : 32,254.20 = 12,794.22 : x
  2. Step 2: Convert to fraction form
    21,503.88/32,254.20 = 12,794.22/x
  3. Step 3: Cross multiply
    21,503.88x = 32,254.20 × 12,794.22
  4. Step 4: Simplify right side
    21,503.88x = 412,667,330.72
  5. Step 5: Solve for x
    x = 412,667,330.72/21,503.88
  6. Step 6: Final answer
    x = 19,190.37

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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.