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Finding the Fourth Proportional to 14,594.81, 20,141.33 and 8,631.59

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Solution

The fourth proportional to 14,594.81, 20,141.33 and 8,631.59 is: 11,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,594.81 : 20,141.33 = 8,631.59 : x
  2. Step 2: Convert to fraction form
    14,594.81/20,141.33 = 8,631.59/x
  3. Step 3: Cross multiply
    14,594.81x = 20,141.33 × 8,631.59
  4. Step 4: Simplify right side
    14,594.81x = 173,851,558.75
  5. Step 5: Solve for x
    x = 173,851,558.75/14,594.81
  6. Step 6: Final answer
    x = 11,911.88

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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.