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Finding the Fourth Proportional to 31,361.99, 47,042.99 and 13,844.12

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Solution

The fourth proportional to 31,361.99, 47,042.99 and 13,844.12 is: 20,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.99 : 47,042.99 = 13,844.12 : x
  2. Step 2: Convert to fraction form
    31,361.99/47,042.99 = 13,844.12/x
  3. Step 3: Cross multiply
    31,361.99x = 47,042.99 × 13,844.12
  4. Step 4: Simplify right side
    31,361.99x = 651,268,798.72
  5. Step 5: Solve for x
    x = 651,268,798.72/31,361.99
  6. Step 6: Final answer
    x = 20,766.18

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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.