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Finding the Fourth Proportional to 11,951.51, 17,927.26 and 5,692.55

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Solution

The fourth proportional to 11,951.51, 17,927.26 and 5,692.55 is: 8,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.51 : 17,927.26 = 5,692.55 : x
  2. Step 2: Convert to fraction form
    11,951.51/17,927.26 = 5,692.55/x
  3. Step 3: Cross multiply
    11,951.51x = 17,927.26 × 5,692.55
  4. Step 4: Simplify right side
    11,951.51x = 102,051,781.88
  5. Step 5: Solve for x
    x = 102,051,781.88/11,951.51
  6. Step 6: Final answer
    x = 8,538.82

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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.