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Finding the Fourth Proportional to 37,289.60, 55,977.60 and 22,515.20

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Solution

The fourth proportional to 37,289.60, 55,977.60 and 22,515.20 is: 33,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,289.60 : 55,977.60 = 22,515.20 : x
  2. Step 2: Convert to fraction form
    37,289.60/55,977.60 = 22,515.20/x
  3. Step 3: Cross multiply
    37,289.60x = 55,977.60 × 22,515.20
  4. Step 4: Simplify right side
    37,289.60x = 1,260,346,859.52
  5. Step 5: Solve for x
    x = 1,260,346,859.52/37,289.60
  6. Step 6: Final answer
    x = 33,798.88

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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.