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Finding the Fourth Proportional to 11,586.79, 15,989.79 and 6,281.62

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Solution

The fourth proportional to 11,586.79, 15,989.79 and 6,281.62 is: 8,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.79 : 15,989.79 = 6,281.62 : x
  2. Step 2: Convert to fraction form
    11,586.79/15,989.79 = 6,281.62/x
  3. Step 3: Cross multiply
    11,586.79x = 15,989.79 × 6,281.62
  4. Step 4: Simplify right side
    11,586.79x = 100,441,784.66
  5. Step 5: Solve for x
    x = 100,441,784.66/11,586.79
  6. Step 6: Final answer
    x = 8,668.65

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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.