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Finding the Fourth Proportional to 18,798.47, 25,969.97 and 12,353.34

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Solution

The fourth proportional to 18,798.47, 25,969.97 and 12,353.34 is: 17,066.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.47 : 25,969.97 = 12,353.34 : x
  2. Step 2: Convert to fraction form
    18,798.47/25,969.97 = 12,353.34/x
  3. Step 3: Cross multiply
    18,798.47x = 25,969.97 × 12,353.34
  4. Step 4: Simplify right side
    18,798.47x = 320,815,807.43
  5. Step 5: Solve for x
    x = 320,815,807.43/18,798.47
  6. Step 6: Final answer
    x = 17,066.06

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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.