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Finding the Fourth Proportional to 67,288.92, 100,838.20 and 37,316.42

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Solution

The fourth proportional to 67,288.92, 100,838.20 and 37,316.42 is: 55,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,288.92 : 100,838.20 = 37,316.42 : x
  2. Step 2: Convert to fraction form
    67,288.92/100,838.20 = 37,316.42/x
  3. Step 3: Cross multiply
    67,288.92x = 100,838.20 × 37,316.42
  4. Step 4: Simplify right side
    67,288.92x = 3,762,920,623.24
  5. Step 5: Solve for x
    x = 3,762,920,623.24/67,288.92
  6. Step 6: Final answer
    x = 55,921.85

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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.