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Finding the Fourth Proportional to 13,926.44, 20,892.06 and 7,358.12

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Solution

The fourth proportional to 13,926.44, 20,892.06 and 7,358.12 is: 11,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.44 : 20,892.06 = 7,358.12 : x
  2. Step 2: Convert to fraction form
    13,926.44/20,892.06 = 7,358.12/x
  3. Step 3: Cross multiply
    13,926.44x = 20,892.06 × 7,358.12
  4. Step 4: Simplify right side
    13,926.44x = 153,726,284.53
  5. Step 5: Solve for x
    x = 153,726,284.53/13,926.44
  6. Step 6: Final answer
    x = 11,038.45

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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.