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Finding the Fourth Proportional to 49,311.68, 73,967.34 and 12,375.68

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Solution

The fourth proportional to 49,311.68, 73,967.34 and 12,375.68 is: 18,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,311.68 : 73,967.34 = 12,375.68 : x
  2. Step 2: Convert to fraction form
    49,311.68/73,967.34 = 12,375.68/x
  3. Step 3: Cross multiply
    49,311.68x = 73,967.34 × 12,375.68
  4. Step 4: Simplify right side
    49,311.68x = 915,396,130.29
  5. Step 5: Solve for x
    x = 915,396,130.29/49,311.68
  6. Step 6: Final answer
    x = 18,563.47

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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.