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Finding the Fourth Proportional to 31,624.63, 43,640.31 and 17,476.63

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Solution

The fourth proportional to 31,624.63, 43,640.31 and 17,476.63 is: 24,116.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.63 : 43,640.31 = 17,476.63 : x
  2. Step 2: Convert to fraction form
    31,624.63/43,640.31 = 17,476.63/x
  3. Step 3: Cross multiply
    31,624.63x = 43,640.31 × 17,476.63
  4. Step 4: Simplify right side
    31,624.63x = 762,685,550.96
  5. Step 5: Solve for x
    x = 762,685,550.96/31,624.63
  6. Step 6: Final answer
    x = 24,116.82

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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.