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Finding the Fourth Proportional to 36,751.35, 50,717.40 and 20,835.45

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Solution

The fourth proportional to 36,751.35, 50,717.40 and 20,835.45 is: 28,753.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,751.35 : 50,717.40 = 20,835.45 : x
  2. Step 2: Convert to fraction form
    36,751.35/50,717.40 = 20,835.45/x
  3. Step 3: Cross multiply
    36,751.35x = 50,717.40 × 20,835.45
  4. Step 4: Simplify right side
    36,751.35x = 1,056,719,851.83
  5. Step 5: Solve for x
    x = 1,056,719,851.83/36,751.35
  6. Step 6: Final answer
    x = 28,753.23

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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.