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Finding the Fourth Proportional to 67,683.72, 101,505.84 and 20,296.92

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Solution

The fourth proportional to 67,683.72, 101,505.84 and 20,296.92 is: 30,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,683.72 : 101,505.84 = 20,296.92 : x
  2. Step 2: Convert to fraction form
    67,683.72/101,505.84 = 20,296.92/x
  3. Step 3: Cross multiply
    67,683.72x = 101,505.84 × 20,296.92
  4. Step 4: Simplify right side
    67,683.72x = 2,060,255,914.01
  5. Step 5: Solve for x
    x = 2,060,255,914.01/67,683.72
  6. Step 6: Final answer
    x = 30,439.46

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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.