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Finding the Fourth Proportional to 25,009.58, 34,511.94 and 13,676.88

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Solution

The fourth proportional to 25,009.58, 34,511.94 and 13,676.88 is: 18,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,009.58 : 34,511.94 = 13,676.88 : x
  2. Step 2: Convert to fraction form
    25,009.58/34,511.94 = 13,676.88/x
  3. Step 3: Cross multiply
    25,009.58x = 34,511.94 × 13,676.88
  4. Step 4: Simplify right side
    25,009.58x = 472,015,661.95
  5. Step 5: Solve for x
    x = 472,015,661.95/25,009.58
  6. Step 6: Final answer
    x = 18,873.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.