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Finding the Fourth Proportional to 11,954.15, 17,931.20 and 5,695.17

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Solution

The fourth proportional to 11,954.15, 17,931.20 and 5,695.17 is: 8,542.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.15 : 17,931.20 = 5,695.17 : x
  2. Step 2: Convert to fraction form
    11,954.15/17,931.20 = 5,695.17/x
  3. Step 3: Cross multiply
    11,954.15x = 17,931.20 × 5,695.17
  4. Step 4: Simplify right side
    11,954.15x = 102,121,203.83
  5. Step 5: Solve for x
    x = 102,121,203.83/11,954.15
  6. Step 6: Final answer
    x = 8,542.74

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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.