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Finding the Fourth Proportional to 18,718.98, 25,832.16 and 10,335.48

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Solution

The fourth proportional to 18,718.98, 25,832.16 and 10,335.48 is: 14,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.98 : 25,832.16 = 10,335.48 : x
  2. Step 2: Convert to fraction form
    18,718.98/25,832.16 = 10,335.48/x
  3. Step 3: Cross multiply
    18,718.98x = 25,832.16 × 10,335.48
  4. Step 4: Simplify right side
    18,718.98x = 266,987,773.04
  5. Step 5: Solve for x
    x = 266,987,773.04/18,718.98
  6. Step 6: Final answer
    x = 14,262.94

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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.