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Finding the Fourth Proportional to 32,758.68, 45,211.84 and 20,019.21

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Solution

The fourth proportional to 32,758.68, 45,211.84 and 20,019.21 is: 27,629.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,758.68 : 45,211.84 = 20,019.21 : x
  2. Step 2: Convert to fraction form
    32,758.68/45,211.84 = 20,019.21/x
  3. Step 3: Cross multiply
    32,758.68x = 45,211.84 × 20,019.21
  4. Step 4: Simplify right side
    32,758.68x = 905,105,099.85
  5. Step 5: Solve for x
    x = 905,105,099.85/32,758.68
  6. Step 6: Final answer
    x = 27,629.47

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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.