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Finding the Fourth Proportional to 18,885.03, 28,327.44 and 4,845.03

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Solution

The fourth proportional to 18,885.03, 28,327.44 and 4,845.03 is: 7,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.03 : 28,327.44 = 4,845.03 : x
  2. Step 2: Convert to fraction form
    18,885.03/28,327.44 = 4,845.03/x
  3. Step 3: Cross multiply
    18,885.03x = 28,327.44 × 4,845.03
  4. Step 4: Simplify right side
    18,885.03x = 137,247,296.62
  5. Step 5: Solve for x
    x = 137,247,296.62/18,885.03
  6. Step 6: Final answer
    x = 7,267.52

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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.