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Finding the Fourth Proportional to 67,138.92, 92,649.63 and 36,920.07

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Solution

The fourth proportional to 67,138.92, 92,649.63 and 36,920.07 is: 50,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,138.92 : 92,649.63 = 36,920.07 : x
  2. Step 2: Convert to fraction form
    67,138.92/92,649.63 = 36,920.07/x
  3. Step 3: Cross multiply
    67,138.92x = 92,649.63 × 36,920.07
  4. Step 4: Simplify right side
    67,138.92x = 3,420,630,825.07
  5. Step 5: Solve for x
    x = 3,420,630,825.07/67,138.92
  6. Step 6: Final answer
    x = 50,948.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.