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Finding the Fourth Proportional to 15,761.12, 23,641.61 and 4,667.87

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Solution

The fourth proportional to 15,761.12, 23,641.61 and 4,667.87 is: 7,001.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761.12 : 23,641.61 = 4,667.87 : x
  2. Step 2: Convert to fraction form
    15,761.12/23,641.61 = 4,667.87/x
  3. Step 3: Cross multiply
    15,761.12x = 23,641.61 × 4,667.87
  4. Step 4: Simplify right side
    15,761.12x = 110,355,997.84
  5. Step 5: Solve for x
    x = 110,355,997.84/15,761.12
  6. Step 6: Final answer
    x = 7,001.79

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