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Finding the Fourth Proportional to 36,699.75, 50,649.98 and 21,795.75

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Solution

The fourth proportional to 36,699.75, 50,649.98 and 21,795.75 is: 30,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,699.75 : 50,649.98 = 21,795.75 : x
  2. Step 2: Convert to fraction form
    36,699.75/50,649.98 = 21,795.75/x
  3. Step 3: Cross multiply
    36,699.75x = 50,649.98 × 21,795.75
  4. Step 4: Simplify right side
    36,699.75x = 1,103,954,192.61
  5. Step 5: Solve for x
    x = 1,103,954,192.61/36,699.75
  6. Step 6: Final answer
    x = 30,080.70

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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.