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Finding the Fourth Proportional to 65,165.22, 89,930.97 and 50,993.46

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Solution

The fourth proportional to 65,165.22, 89,930.97 and 50,993.46 is: 70,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,165.22 : 89,930.97 = 50,993.46 : x
  2. Step 2: Convert to fraction form
    65,165.22/89,930.97 = 50,993.46/x
  3. Step 3: Cross multiply
    65,165.22x = 89,930.97 × 50,993.46
  4. Step 4: Simplify right side
    65,165.22x = 4,585,891,321.46
  5. Step 5: Solve for x
    x = 4,585,891,321.46/65,165.22
  6. Step 6: Final answer
    x = 70,373.30

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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.