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Finding the Fourth Proportional to 18,250.20, 25,185.42 and 10,074.06

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Solution

The fourth proportional to 18,250.20, 25,185.42 and 10,074.06 is: 13,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.20 : 25,185.42 = 10,074.06 : x
  2. Step 2: Convert to fraction form
    18,250.20/25,185.42 = 10,074.06/x
  3. Step 3: Cross multiply
    18,250.20x = 25,185.42 × 10,074.06
  4. Step 4: Simplify right side
    18,250.20x = 253,719,432.21
  5. Step 5: Solve for x
    x = 253,719,432.21/18,250.20
  6. Step 6: Final answer
    x = 13,902.28

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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.