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Finding the Fourth Proportional to 32,759.68, 45,213.22 and 20,020.21

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Solution

The fourth proportional to 32,759.68, 45,213.22 and 20,020.21 is: 27,630.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,759.68 : 45,213.22 = 20,020.21 : x
  2. Step 2: Convert to fraction form
    32,759.68/45,213.22 = 20,020.21/x
  3. Step 3: Cross multiply
    32,759.68x = 45,213.22 × 20,020.21
  4. Step 4: Simplify right side
    32,759.68x = 905,178,159.18
  5. Step 5: Solve for x
    x = 905,178,159.18/32,759.68
  6. Step 6: Final answer
    x = 27,630.86

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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.