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Finding the Fourth Proportional to 21,963.14, 32,910.22 and 16,977.74

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Solution

The fourth proportional to 21,963.14, 32,910.22 and 16,977.74 is: 25,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.14 : 32,910.22 = 16,977.74 : x
  2. Step 2: Convert to fraction form
    21,963.14/32,910.22 = 16,977.74/x
  3. Step 3: Cross multiply
    21,963.14x = 32,910.22 × 16,977.74
  4. Step 4: Simplify right side
    21,963.14x = 558,740,951.51
  5. Step 5: Solve for x
    x = 558,740,951.51/21,963.14
  6. Step 6: Final answer
    x = 25,439.94

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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.