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Finding the Fourth Proportional to 1,951.17, 2,692.63 and 1,066.92

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Solution

The fourth proportional to 1,951.17, 2,692.63 and 1,066.92 is: 1,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.17 : 2,692.63 = 1,066.92 : x
  2. Step 2: Convert to fraction form
    1,951.17/2,692.63 = 1,066.92/x
  3. Step 3: Cross multiply
    1,951.17x = 2,692.63 × 1,066.92
  4. Step 4: Simplify right side
    1,951.17x = 2,872,820.80
  5. Step 5: Solve for x
    x = 2,872,820.80/1,951.17
  6. Step 6: Final answer
    x = 1,472.36

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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.