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Finding the Fourth Proportional to 65,233.32, 90,019.46 and 36,939.08

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Solution

The fourth proportional to 65,233.32, 90,019.46 and 36,939.08 is: 50,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,233.32 : 90,019.46 = 36,939.08 : x
  2. Step 2: Convert to fraction form
    65,233.32/90,019.46 = 36,939.08/x
  3. Step 3: Cross multiply
    65,233.32x = 90,019.46 × 36,939.08
  4. Step 4: Simplify right side
    65,233.32x = 3,325,235,399.70
  5. Step 5: Solve for x
    x = 3,325,235,399.70/65,233.32
  6. Step 6: Final answer
    x = 50,974.49

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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.