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Finding the Fourth Proportional to 18,170.57, 25,074.24 and 10,212.68

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Solution

The fourth proportional to 18,170.57, 25,074.24 and 10,212.68 is: 14,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.57 : 25,074.24 = 10,212.68 : x
  2. Step 2: Convert to fraction form
    18,170.57/25,074.24 = 10,212.68/x
  3. Step 3: Cross multiply
    18,170.57x = 25,074.24 × 10,212.68
  4. Step 4: Simplify right side
    18,170.57x = 256,075,189.36
  5. Step 5: Solve for x
    x = 256,075,189.36/18,170.57
  6. Step 6: Final answer
    x = 14,092.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.