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Finding the Fourth Proportional to 19,247.64, 28,869.03 and 6,767.16

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Solution

The fourth proportional to 19,247.64, 28,869.03 and 6,767.16 is: 10,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.64 : 28,869.03 = 6,767.16 : x
  2. Step 2: Convert to fraction form
    19,247.64/28,869.03 = 6,767.16/x
  3. Step 3: Cross multiply
    19,247.64x = 28,869.03 × 6,767.16
  4. Step 4: Simplify right side
    19,247.64x = 195,361,345.05
  5. Step 5: Solve for x
    x = 195,361,345.05/19,247.64
  6. Step 6: Final answer
    x = 10,149.89

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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.