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Finding the Fourth Proportional to 18,457.64, 25,471.62 and 10,074.14

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Solution

The fourth proportional to 18,457.64, 25,471.62 and 10,074.14 is: 13,902.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.64 : 25,471.62 = 10,074.14 : x
  2. Step 2: Convert to fraction form
    18,457.64/25,471.62 = 10,074.14/x
  3. Step 3: Cross multiply
    18,457.64x = 25,471.62 × 10,074.14
  4. Step 4: Simplify right side
    18,457.64x = 256,604,665.91
  5. Step 5: Solve for x
    x = 256,604,665.91/18,457.64
  6. Step 6: Final answer
    x = 13,902.36

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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.