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Finding the Fourth Proportional to 8,681.40, 11,967.78 and 5,692.04

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Solution

The fourth proportional to 8,681.40, 11,967.78 and 5,692.04 is: 7,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.40 : 11,967.78 = 5,692.04 : x
  2. Step 2: Convert to fraction form
    8,681.40/11,967.78 = 5,692.04/x
  3. Step 3: Cross multiply
    8,681.40x = 11,967.78 × 5,692.04
  4. Step 4: Simplify right side
    8,681.40x = 68,121,082.47
  5. Step 5: Solve for x
    x = 68,121,082.47/8,681.40
  6. Step 6: Final answer
    x = 7,846.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.