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Finding the Fourth Proportional to 53,597.80, 80,403.90 and 18,548.20

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Solution

The fourth proportional to 53,597.80, 80,403.90 and 18,548.20 is: 27,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,597.80 : 80,403.90 = 18,548.20 : x
  2. Step 2: Convert to fraction form
    53,597.80/80,403.90 = 18,548.20/x
  3. Step 3: Cross multiply
    53,597.80x = 80,403.90 × 18,548.20
  4. Step 4: Simplify right side
    53,597.80x = 1,491,347,617.98
  5. Step 5: Solve for x
    x = 1,491,347,617.98/53,597.80
  6. Step 6: Final answer
    x = 27,824.79

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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.