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Finding the Fourth Proportional to 18,745.40, 25,868.12 and 10,792.02

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Solution

The fourth proportional to 18,745.40, 25,868.12 and 10,792.02 is: 14,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.40 : 25,868.12 = 10,792.02 : x
  2. Step 2: Convert to fraction form
    18,745.40/25,868.12 = 10,792.02/x
  3. Step 3: Cross multiply
    18,745.40x = 25,868.12 × 10,792.02
  4. Step 4: Simplify right side
    18,745.40x = 279,169,268.40
  5. Step 5: Solve for x
    x = 279,169,268.40/18,745.40
  6. Step 6: Final answer
    x = 14,892.68

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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.