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Finding the Fourth Proportional to 18,502.56, 25,533.01 and 10,118.88

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Solution

The fourth proportional to 18,502.56, 25,533.01 and 10,118.88 is: 13,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.56 : 25,533.01 = 10,118.88 : x
  2. Step 2: Convert to fraction form
    18,502.56/25,533.01 = 10,118.88/x
  3. Step 3: Cross multiply
    18,502.56x = 25,533.01 × 10,118.88
  4. Step 4: Simplify right side
    18,502.56x = 258,365,464.23
  5. Step 5: Solve for x
    x = 258,365,464.23/18,502.56
  6. Step 6: Final answer
    x = 13,963.77

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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.