Home / 57,679.11-86,518.13-18,236.23

Finding the Fourth Proportional to 57,679.11, 86,518.13 and 18,236.23

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Solution

The fourth proportional to 57,679.11, 86,518.13 and 18,236.23 is: 27,354.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,679.11 : 86,518.13 = 18,236.23 : x
  2. Step 2: Convert to fraction form
    57,679.11/86,518.13 = 18,236.23/x
  3. Step 3: Cross multiply
    57,679.11x = 86,518.13 × 18,236.23
  4. Step 4: Simplify right side
    57,679.11x = 1,577,764,278.76
  5. Step 5: Solve for x
    x = 1,577,764,278.76/57,679.11
  6. Step 6: Final answer
    x = 27,354.17

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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.