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Finding the Fourth Proportional to 15,676.44, 23,518.43 and 5,815.81

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Solution

The fourth proportional to 15,676.44, 23,518.43 and 5,815.81 is: 8,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.44 : 23,518.43 = 5,815.81 : x
  2. Step 2: Convert to fraction form
    15,676.44/23,518.43 = 5,815.81/x
  3. Step 3: Cross multiply
    15,676.44x = 23,518.43 × 5,815.81
  4. Step 4: Simplify right side
    15,676.44x = 136,778,654.31
  5. Step 5: Solve for x
    x = 136,778,654.31/15,676.44
  6. Step 6: Final answer
    x = 8,725.11

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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.