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Finding the Fourth Proportional to 19,105.60, 28,593.60 and 16,772.80

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Solution

The fourth proportional to 19,105.60, 28,593.60 and 16,772.80 is: 25,102.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.60 : 28,593.60 = 16,772.80 : x
  2. Step 2: Convert to fraction form
    19,105.60/28,593.60 = 16,772.80/x
  3. Step 3: Cross multiply
    19,105.60x = 28,593.60 × 16,772.80
  4. Step 4: Simplify right side
    19,105.60x = 479,594,734.08
  5. Step 5: Solve for x
    x = 479,594,734.08/19,105.60
  6. Step 6: Final answer
    x = 25,102.31

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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.