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Finding the Fourth Proportional to 13,819.27, 19,073.04 and 8,153.68

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Solution

The fourth proportional to 13,819.27, 19,073.04 and 8,153.68 is: 11,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.27 : 19,073.04 = 8,153.68 : x
  2. Step 2: Convert to fraction form
    13,819.27/19,073.04 = 8,153.68/x
  3. Step 3: Cross multiply
    13,819.27x = 19,073.04 × 8,153.68
  4. Step 4: Simplify right side
    13,819.27x = 155,515,464.79
  5. Step 5: Solve for x
    x = 155,515,464.79/13,819.27
  6. Step 6: Final answer
    x = 11,253.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.