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Finding the Fourth Proportional to 18,171.24, 25,074.90 and 10,211.91

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Solution

The fourth proportional to 18,171.24, 25,074.90 and 10,211.91 is: 14,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.24 : 25,074.90 = 10,211.91 : x
  2. Step 2: Convert to fraction form
    18,171.24/25,074.90 = 10,211.91/x
  3. Step 3: Cross multiply
    18,171.24x = 25,074.90 × 10,211.91
  4. Step 4: Simplify right side
    18,171.24x = 256,062,622.06
  5. Step 5: Solve for x
    x = 256,062,622.06/18,171.24
  6. Step 6: Final answer
    x = 14,091.64

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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.