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Finding the Fourth Proportional to 57,497.56, 86,246.76 and 20,057.51

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Solution

The fourth proportional to 57,497.56, 86,246.76 and 20,057.51 is: 30,086.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,497.56 : 86,246.76 = 20,057.51 : x
  2. Step 2: Convert to fraction form
    57,497.56/86,246.76 = 20,057.51/x
  3. Step 3: Cross multiply
    57,497.56x = 86,246.76 × 20,057.51
  4. Step 4: Simplify right side
    57,497.56x = 1,729,895,251.17
  5. Step 5: Solve for x
    x = 1,729,895,251.17/57,497.56
  6. Step 6: Final answer
    x = 30,086.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.