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Finding the Fourth Proportional to 18,773.58, 28,156.29 and 5,622.42

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Solution

The fourth proportional to 18,773.58, 28,156.29 and 5,622.42 is: 8,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.58 : 28,156.29 = 5,622.42 : x
  2. Step 2: Convert to fraction form
    18,773.58/28,156.29 = 5,622.42/x
  3. Step 3: Cross multiply
    18,773.58x = 28,156.29 × 5,622.42
  4. Step 4: Simplify right side
    18,773.58x = 158,306,488.02
  5. Step 5: Solve for x
    x = 158,306,488.02/18,773.58
  6. Step 6: Final answer
    x = 8,432.41

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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.