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Finding the Fourth Proportional to 15,995.82, 23,986.44 and 7,679.76

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Solution

The fourth proportional to 15,995.82, 23,986.44 and 7,679.76 is: 11,516.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.82 : 23,986.44 = 7,679.76 : x
  2. Step 2: Convert to fraction form
    15,995.82/23,986.44 = 7,679.76/x
  3. Step 3: Cross multiply
    15,995.82x = 23,986.44 × 7,679.76
  4. Step 4: Simplify right side
    15,995.82x = 184,210,102.45
  5. Step 5: Solve for x
    x = 184,210,102.45/15,995.82
  6. Step 6: Final answer
    x = 11,516.14

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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.