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Finding the Fourth Proportional to 36,718.50, 50,672.14 and 20,806.22

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Solution

The fourth proportional to 36,718.50, 50,672.14 and 20,806.22 is: 28,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,718.50 : 50,672.14 = 20,806.22 : x
  2. Step 2: Convert to fraction form
    36,718.50/50,672.14 = 20,806.22/x
  3. Step 3: Cross multiply
    36,718.50x = 50,672.14 × 20,806.22
  4. Step 4: Simplify right side
    36,718.50x = 1,054,295,692.71
  5. Step 5: Solve for x
    x = 1,054,295,692.71/36,718.50
  6. Step 6: Final answer
    x = 28,712.93

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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.