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Finding the Fourth Proportional to 37,265.20, 55,878.60 and 13,879.60

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Solution

The fourth proportional to 37,265.20, 55,878.60 and 13,879.60 is: 20,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,265.20 : 55,878.60 = 13,879.60 : x
  2. Step 2: Convert to fraction form
    37,265.20/55,878.60 = 13,879.60/x
  3. Step 3: Cross multiply
    37,265.20x = 55,878.60 × 13,879.60
  4. Step 4: Simplify right side
    37,265.20x = 775,572,616.56
  5. Step 5: Solve for x
    x = 775,572,616.56/37,265.20
  6. Step 6: Final answer
    x = 20,812.25

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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.