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Finding the Fourth Proportional to 18,170.58, 25,074.58 and 10,617.60

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Solution

The fourth proportional to 18,170.58, 25,074.58 and 10,617.60 is: 14,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.58 : 25,074.58 = 10,617.60 : x
  2. Step 2: Convert to fraction form
    18,170.58/25,074.58 = 10,617.60/x
  3. Step 3: Cross multiply
    18,170.58x = 25,074.58 × 10,617.60
  4. Step 4: Simplify right side
    18,170.58x = 266,231,860.61
  5. Step 5: Solve for x
    x = 266,231,860.61/18,170.58
  6. Step 6: Final answer
    x = 14,651.81

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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.