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Finding the Fourth Proportional to 65,230.72, 90,016.77 and 36,551.56

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Solution

The fourth proportional to 65,230.72, 90,016.77 and 36,551.56 is: 50,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,230.72 : 90,016.77 = 36,551.56 : x
  2. Step 2: Convert to fraction form
    65,230.72/90,016.77 = 36,551.56/x
  3. Step 3: Cross multiply
    65,230.72x = 90,016.77 × 36,551.56
  4. Step 4: Simplify right side
    65,230.72x = 3,290,252,919.58
  5. Step 5: Solve for x
    x = 3,290,252,919.58/65,230.72
  6. Step 6: Final answer
    x = 50,440.24

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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.