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Finding the Fourth Proportional to 53,945.80, 80,937.90 and 52,025.80

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Solution

The fourth proportional to 53,945.80, 80,937.90 and 52,025.80 is: 78,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,945.80 : 80,937.90 = 52,025.80 : x
  2. Step 2: Convert to fraction form
    53,945.80/80,937.90 = 52,025.80/x
  3. Step 3: Cross multiply
    53,945.80x = 80,937.90 × 52,025.80
  4. Step 4: Simplify right side
    53,945.80x = 4,210,858,997.82
  5. Step 5: Solve for x
    x = 4,210,858,997.82/53,945.80
  6. Step 6: Final answer
    x = 78,057.22

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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.