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Finding the Fourth Proportional to 13,476.96, 20,193.57 and 10,688.58

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Solution

The fourth proportional to 13,476.96, 20,193.57 and 10,688.58 is: 16,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.96 : 20,193.57 = 10,688.58 : x
  2. Step 2: Convert to fraction form
    13,476.96/20,193.57 = 10,688.58/x
  3. Step 3: Cross multiply
    13,476.96x = 20,193.57 × 10,688.58
  4. Step 4: Simplify right side
    13,476.96x = 215,840,588.43
  5. Step 5: Solve for x
    x = 215,840,588.43/13,476.96
  6. Step 6: Final answer
    x = 16,015.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.