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Finding the Fourth Proportional to 19,084, 28,592.64 and 13,244.32

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Solution

The fourth proportional to 19,084, 28,592.64 and 13,244.32 is: 19,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,084 : 28,592.64 = 13,244.32 : x
  2. Step 2: Convert to fraction form
    19,084/28,592.64 = 13,244.32/x
  3. Step 3: Cross multiply
    19,084x = 28,592.64 × 13,244.32
  4. Step 4: Simplify right side
    19,084x = 378,690,073.80
  5. Step 5: Solve for x
    x = 378,690,073.80/19,084
  6. Step 6: Final answer
    x = 19,843.33

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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.