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Finding the Fourth Proportional to 4,788.73, 7,181.70 and 1,667.98

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Solution

The fourth proportional to 4,788.73, 7,181.70 and 1,667.98 is: 2,501.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.73 : 7,181.70 = 1,667.98 : x
  2. Step 2: Convert to fraction form
    4,788.73/7,181.70 = 1,667.98/x
  3. Step 3: Cross multiply
    4,788.73x = 7,181.70 × 1,667.98
  4. Step 4: Simplify right side
    4,788.73x = 11,978,931.97
  5. Step 5: Solve for x
    x = 11,978,931.97/4,788.73
  6. Step 6: Final answer
    x = 2,501.48

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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.