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Finding the Fourth Proportional to 65,003.90, 89,704.22 and 36,324.14

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Solution

The fourth proportional to 65,003.90, 89,704.22 and 36,324.14 is: 50,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,003.90 : 89,704.22 = 36,324.14 : x
  2. Step 2: Convert to fraction form
    65,003.90/89,704.22 = 36,324.14/x
  3. Step 3: Cross multiply
    65,003.90x = 89,704.22 × 36,324.14
  4. Step 4: Simplify right side
    65,003.90x = 3,258,428,015.73
  5. Step 5: Solve for x
    x = 3,258,428,015.73/65,003.90
  6. Step 6: Final answer
    x = 50,126.66

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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.