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Finding the Fourth Proportional to 31,797.18, 47,695.77 and 16,961.15

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Solution

The fourth proportional to 31,797.18, 47,695.77 and 16,961.15 is: 25,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,797.18 : 47,695.77 = 16,961.15 : x
  2. Step 2: Convert to fraction form
    31,797.18/47,695.77 = 16,961.15/x
  3. Step 3: Cross multiply
    31,797.18x = 47,695.77 × 16,961.15
  4. Step 4: Simplify right side
    31,797.18x = 808,975,228.57
  5. Step 5: Solve for x
    x = 808,975,228.57/31,797.18
  6. Step 6: Final answer
    x = 25,441.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.