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Finding the Fourth Proportional to 18,553.23, 25,603.47 and 10,055.43

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Solution

The fourth proportional to 18,553.23, 25,603.47 and 10,055.43 is: 13,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.23 : 25,603.47 = 10,055.43 : x
  2. Step 2: Convert to fraction form
    18,553.23/25,603.47 = 10,055.43/x
  3. Step 3: Cross multiply
    18,553.23x = 25,603.47 × 10,055.43
  4. Step 4: Simplify right side
    18,553.23x = 257,453,900.34
  5. Step 5: Solve for x
    x = 257,453,900.34/18,553.23
  6. Step 6: Final answer
    x = 13,876.50

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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.