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Finding the Fourth Proportional to 53,592.90, 80,400.90 and 18,057.78

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Solution

The fourth proportional to 53,592.90, 80,400.90 and 18,057.78 is: 27,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,592.90 : 80,400.90 = 18,057.78 : x
  2. Step 2: Convert to fraction form
    53,592.90/80,400.90 = 18,057.78/x
  3. Step 3: Cross multiply
    53,592.90x = 80,400.90 × 18,057.78
  4. Step 4: Simplify right side
    53,592.90x = 1,451,861,764.00
  5. Step 5: Solve for x
    x = 1,451,861,764.00/53,592.90
  6. Step 6: Final answer
    x = 27,090.56

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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.