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Finding the Fourth Proportional to 40,527.48, 60,679.26 and 20,763.48

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Solution

The fourth proportional to 40,527.48, 60,679.26 and 20,763.48 is: 31,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,527.48 : 60,679.26 = 20,763.48 : x
  2. Step 2: Convert to fraction form
    40,527.48/60,679.26 = 20,763.48/x
  3. Step 3: Cross multiply
    40,527.48x = 60,679.26 × 20,763.48
  4. Step 4: Simplify right side
    40,527.48x = 1,259,912,601.42
  5. Step 5: Solve for x
    x = 1,259,912,601.42/40,527.48
  6. Step 6: Final answer
    x = 31,087.86

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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.