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Finding the Fourth Proportional to 18,801.30, 25,945.74 and 10,417.80

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Solution

The fourth proportional to 18,801.30, 25,945.74 and 10,417.80 is: 14,376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.30 : 25,945.74 = 10,417.80 : x
  2. Step 2: Convert to fraction form
    18,801.30/25,945.74 = 10,417.80/x
  3. Step 3: Cross multiply
    18,801.30x = 25,945.74 × 10,417.80
  4. Step 4: Simplify right side
    18,801.30x = 270,297,530.17
  5. Step 5: Solve for x
    x = 270,297,530.17/18,801.30
  6. Step 6: Final answer
    x = 14,376.53

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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.