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Finding the Fourth Proportional to 18,843.43, 28,263.77 and 7,599.53

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Solution

The fourth proportional to 18,843.43, 28,263.77 and 7,599.53 is: 11,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.43 : 28,263.77 = 7,599.53 : x
  2. Step 2: Convert to fraction form
    18,843.43/28,263.77 = 7,599.53/x
  3. Step 3: Cross multiply
    18,843.43x = 28,263.77 × 7,599.53
  4. Step 4: Simplify right side
    18,843.43x = 214,791,188.71
  5. Step 5: Solve for x
    x = 214,791,188.71/18,843.43
  6. Step 6: Final answer
    x = 11,398.73

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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.