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Finding the Fourth Proportional to 55,937.60, 83,906.40 and 33,819.20

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Solution

The fourth proportional to 55,937.60, 83,906.40 and 33,819.20 is: 50,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,937.60 : 83,906.40 = 33,819.20 : x
  2. Step 2: Convert to fraction form
    55,937.60/83,906.40 = 33,819.20/x
  3. Step 3: Cross multiply
    55,937.60x = 83,906.40 × 33,819.20
  4. Step 4: Simplify right side
    55,937.60x = 2,837,647,322.88
  5. Step 5: Solve for x
    x = 2,837,647,322.88/55,937.60
  6. Step 6: Final answer
    x = 50,728.80

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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.