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Finding the Fourth Proportional to 13,801.68, 19,050.66 and 8,136.12

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Solution

The fourth proportional to 13,801.68, 19,050.66 and 8,136.12 is: 11,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.68 : 19,050.66 = 8,136.12 : x
  2. Step 2: Convert to fraction form
    13,801.68/19,050.66 = 8,136.12/x
  3. Step 3: Cross multiply
    13,801.68x = 19,050.66 × 8,136.12
  4. Step 4: Simplify right side
    13,801.68x = 154,998,455.84
  5. Step 5: Solve for x
    x = 154,998,455.84/13,801.68
  6. Step 6: Final answer
    x = 11,230.40

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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.