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Finding the Fourth Proportional to 2,951.37, 4,072.94 and 1,692.63

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Solution

The fourth proportional to 2,951.37, 4,072.94 and 1,692.63 is: 2,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.37 : 4,072.94 = 1,692.63 : x
  2. Step 2: Convert to fraction form
    2,951.37/4,072.94 = 1,692.63/x
  3. Step 3: Cross multiply
    2,951.37x = 4,072.94 × 1,692.63
  4. Step 4: Simplify right side
    2,951.37x = 6,893,980.43
  5. Step 5: Solve for x
    x = 6,893,980.43/2,951.37
  6. Step 6: Final answer
    x = 2,335.86

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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.