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Finding the Fourth Proportional to 57,625.70, 86,450.70 and 18,186.80

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Solution

The fourth proportional to 57,625.70, 86,450.70 and 18,186.80 is: 27,284.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,625.70 : 86,450.70 = 18,186.80 : x
  2. Step 2: Convert to fraction form
    57,625.70/86,450.70 = 18,186.80/x
  3. Step 3: Cross multiply
    57,625.70x = 86,450.70 × 18,186.80
  4. Step 4: Simplify right side
    57,625.70x = 1,572,261,590.76
  5. Step 5: Solve for x
    x = 1,572,261,590.76/57,625.70
  6. Step 6: Final answer
    x = 27,284.03

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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.