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Finding the Fourth Proportional to 36,705.66, 50,662.86 and 20,799.50

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Solution

The fourth proportional to 36,705.66, 50,662.86 and 20,799.50 is: 28,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,705.66 : 50,662.86 = 20,799.50 : x
  2. Step 2: Convert to fraction form
    36,705.66/50,662.86 = 20,799.50/x
  3. Step 3: Cross multiply
    36,705.66x = 50,662.86 × 20,799.50
  4. Step 4: Simplify right side
    36,705.66x = 1,053,762,156.57
  5. Step 5: Solve for x
    x = 1,053,762,156.57/36,705.66
  6. Step 6: Final answer
    x = 28,708.44

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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.