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Finding the Fourth Proportional to 57,996.90, 86,992.10 and 15,873.89

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Solution

The fourth proportional to 57,996.90, 86,992.10 and 15,873.89 is: 23,809.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,996.90 : 86,992.10 = 15,873.89 : x
  2. Step 2: Convert to fraction form
    57,996.90/86,992.10 = 15,873.89/x
  3. Step 3: Cross multiply
    57,996.90x = 86,992.10 × 15,873.89
  4. Step 4: Simplify right side
    57,996.90x = 1,380,902,511.94
  5. Step 5: Solve for x
    x = 1,380,902,511.94/57,996.90
  6. Step 6: Final answer
    x = 23,809.94

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1.5x scale

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.