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Finding the Fourth Proportional to 36,276.84, 50,061.54 and 20,361

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Solution

The fourth proportional to 36,276.84, 50,061.54 and 20,361 is: 28,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,276.84 : 50,061.54 = 20,361 : x
  2. Step 2: Convert to fraction form
    36,276.84/50,061.54 = 20,361/x
  3. Step 3: Cross multiply
    36,276.84x = 50,061.54 × 20,361
  4. Step 4: Simplify right side
    36,276.84x = 1,019,303,015.94
  5. Step 5: Solve for x
    x = 1,019,303,015.94/36,276.84
  6. Step 6: Final answer
    x = 28,097.90

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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.