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Finding the Fourth Proportional to 18,744.48, 28,099.44 and 9,508.32

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Solution

The fourth proportional to 18,744.48, 28,099.44 and 9,508.32 is: 14,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.48 : 28,099.44 = 9,508.32 : x
  2. Step 2: Convert to fraction form
    18,744.48/28,099.44 = 9,508.32/x
  3. Step 3: Cross multiply
    18,744.48x = 28,099.44 × 9,508.32
  4. Step 4: Simplify right side
    18,744.48x = 267,178,467.34
  5. Step 5: Solve for x
    x = 267,178,467.34/18,744.48
  6. Step 6: Final answer
    x = 14,253.71

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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.