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Finding the Fourth Proportional to 18,595.08, 25,660.47 and 10,638.03

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Solution

The fourth proportional to 18,595.08, 25,660.47 and 10,638.03 is: 14,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.08 : 25,660.47 = 10,638.03 : x
  2. Step 2: Convert to fraction form
    18,595.08/25,660.47 = 10,638.03/x
  3. Step 3: Cross multiply
    18,595.08x = 25,660.47 × 10,638.03
  4. Step 4: Simplify right side
    18,595.08x = 272,976,849.67
  5. Step 5: Solve for x
    x = 272,976,849.67/18,595.08
  6. Step 6: Final answer
    x = 14,680.06

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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.