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Finding the Fourth Proportional to 30,382.88, 41,918.56 and 16,951.96

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Solution

The fourth proportional to 30,382.88, 41,918.56 and 16,951.96 is: 23,388.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.88 : 41,918.56 = 16,951.96 : x
  2. Step 2: Convert to fraction form
    30,382.88/41,918.56 = 16,951.96/x
  3. Step 3: Cross multiply
    30,382.88x = 41,918.56 × 16,951.96
  4. Step 4: Simplify right side
    30,382.88x = 710,601,752.38
  5. Step 5: Solve for x
    x = 710,601,752.38/30,382.88
  6. Step 6: Final answer
    x = 23,388.23

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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.