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Finding the Fourth Proportional to 31,505.44, 43,475.79 and 17,357.17

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Solution

The fourth proportional to 31,505.44, 43,475.79 and 17,357.17 is: 23,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.44 : 43,475.79 = 17,357.17 : x
  2. Step 2: Convert to fraction form
    31,505.44/43,475.79 = 17,357.17/x
  3. Step 3: Cross multiply
    31,505.44x = 43,475.79 × 17,357.17
  4. Step 4: Simplify right side
    31,505.44x = 754,616,677.91
  5. Step 5: Solve for x
    x = 754,616,677.91/31,505.44
  6. Step 6: Final answer
    x = 23,951.95

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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.