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Finding the Fourth Proportional to 11,659.79, 16,089.77 and 6,623.62

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Solution

The fourth proportional to 11,659.79, 16,089.77 and 6,623.62 is: 9,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.79 : 16,089.77 = 6,623.62 : x
  2. Step 2: Convert to fraction form
    11,659.79/16,089.77 = 6,623.62/x
  3. Step 3: Cross multiply
    11,659.79x = 16,089.77 × 6,623.62
  4. Step 4: Simplify right side
    11,659.79x = 106,572,408.80
  5. Step 5: Solve for x
    x = 106,572,408.80/11,659.79
  6. Step 6: Final answer
    x = 9,140.17

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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.