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Finding the Fourth Proportional to 67,246.27, 100,865.76 and 20,495.50

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Solution

The fourth proportional to 67,246.27, 100,865.76 and 20,495.50 is: 30,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,246.27 : 100,865.76 = 20,495.50 : x
  2. Step 2: Convert to fraction form
    67,246.27/100,865.76 = 20,495.50/x
  3. Step 3: Cross multiply
    67,246.27x = 100,865.76 × 20,495.50
  4. Step 4: Simplify right side
    67,246.27x = 2,067,294,184.08
  5. Step 5: Solve for x
    x = 2,067,294,184.08/67,246.27
  6. Step 6: Final answer
    x = 30,742.14

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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.