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Finding the Fourth Proportional to 65,373.94, 90,219.99 and 36,703

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Solution

The fourth proportional to 65,373.94, 90,219.99 and 36,703 is: 50,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,373.94 : 90,219.99 = 36,703 : x
  2. Step 2: Convert to fraction form
    65,373.94/90,219.99 = 36,703/x
  3. Step 3: Cross multiply
    65,373.94x = 90,219.99 × 36,703
  4. Step 4: Simplify right side
    65,373.94x = 3,311,344,292.97
  5. Step 5: Solve for x
    x = 3,311,344,292.97/65,373.94
  6. Step 6: Final answer
    x = 50,652.36

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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.