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Finding the Fourth Proportional to 21,692.62, 32,533.08 and 7,650.82

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Solution

The fourth proportional to 21,692.62, 32,533.08 and 7,650.82 is: 11,474.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.62 : 32,533.08 = 7,650.82 : x
  2. Step 2: Convert to fraction form
    21,692.62/32,533.08 = 7,650.82/x
  3. Step 3: Cross multiply
    21,692.62x = 32,533.08 × 7,650.82
  4. Step 4: Simplify right side
    21,692.62x = 248,904,785.16
  5. Step 5: Solve for x
    x = 248,904,785.16/21,692.62
  6. Step 6: Final answer
    x = 11,474.17

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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.