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Finding the Fourth Proportional to 8,697.77, 12,012.90 and 5,726.89

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Solution

The fourth proportional to 8,697.77, 12,012.90 and 5,726.89 is: 7,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.77 : 12,012.90 = 5,726.89 : x
  2. Step 2: Convert to fraction form
    8,697.77/12,012.90 = 5,726.89/x
  3. Step 3: Cross multiply
    8,697.77x = 12,012.90 × 5,726.89
  4. Step 4: Simplify right side
    8,697.77x = 68,796,556.88
  5. Step 5: Solve for x
    x = 68,796,556.88/8,697.77
  6. Step 6: Final answer
    x = 7,909.68

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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.