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Finding the Fourth Proportional to 28,832.20, 43,233.90 and 13,232.20

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Solution

The fourth proportional to 28,832.20, 43,233.90 and 13,232.20 is: 19,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,832.20 : 43,233.90 = 13,232.20 : x
  2. Step 2: Convert to fraction form
    28,832.20/43,233.90 = 13,232.20/x
  3. Step 3: Cross multiply
    28,832.20x = 43,233.90 × 13,232.20
  4. Step 4: Simplify right side
    28,832.20x = 572,079,611.58
  5. Step 5: Solve for x
    x = 572,079,611.58/28,832.20
  6. Step 6: Final answer
    x = 19,841.69

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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.