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Finding the Fourth Proportional to 25,679.03, 38,518.00 and 11,828.03

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Solution

The fourth proportional to 25,679.03, 38,518.00 and 11,828.03 is: 17,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,679.03 : 38,518.00 = 11,828.03 : x
  2. Step 2: Convert to fraction form
    25,679.03/38,518.00 = 11,828.03/x
  3. Step 3: Cross multiply
    25,679.03x = 38,518.00 × 11,828.03
  4. Step 4: Simplify right side
    25,679.03x = 455,591,837.38
  5. Step 5: Solve for x
    x = 455,591,837.38/25,679.03
  6. Step 6: Final answer
    x = 17,741.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.