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Finding the Fourth Proportional to 18,833.34, 28,250.21 and 5,685.82

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Solution

The fourth proportional to 18,833.34, 28,250.21 and 5,685.82 is: 8,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.34 : 28,250.21 = 5,685.82 : x
  2. Step 2: Convert to fraction form
    18,833.34/28,250.21 = 5,685.82/x
  3. Step 3: Cross multiply
    18,833.34x = 28,250.21 × 5,685.82
  4. Step 4: Simplify right side
    18,833.34x = 160,625,609.02
  5. Step 5: Solve for x
    x = 160,625,609.02/18,833.34
  6. Step 6: Final answer
    x = 8,528.79

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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.