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Finding the Fourth Proportional to 18,457.62, 25,471.54 and 10,074.12

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Solution

The fourth proportional to 18,457.62, 25,471.54 and 10,074.12 is: 13,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.62 : 25,471.54 = 10,074.12 : x
  2. Step 2: Convert to fraction form
    18,457.62/25,471.54 = 10,074.12/x
  3. Step 3: Cross multiply
    18,457.62x = 25,471.54 × 10,074.12
  4. Step 4: Simplify right side
    18,457.62x = 256,603,350.54
  5. Step 5: Solve for x
    x = 256,603,350.54/18,457.62
  6. Step 6: Final answer
    x = 13,902.30

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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.