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Finding the Fourth Proportional to 18,693.47, 25,796.52 and 10,195.76

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Solution

The fourth proportional to 18,693.47, 25,796.52 and 10,195.76 is: 14,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.47 : 25,796.52 = 10,195.76 : x
  2. Step 2: Convert to fraction form
    18,693.47/25,796.52 = 10,195.76/x
  3. Step 3: Cross multiply
    18,693.47x = 25,796.52 × 10,195.76
  4. Step 4: Simplify right side
    18,693.47x = 263,015,191.25
  5. Step 5: Solve for x
    x = 263,015,191.25/18,693.47
  6. Step 6: Final answer
    x = 14,069.89

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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.