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Finding the Fourth Proportional to 86,692.72, 130,027.28 and 23,516.90

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Solution

The fourth proportional to 86,692.72, 130,027.28 and 23,516.90 is: 35,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,692.72 : 130,027.28 = 23,516.90 : x
  2. Step 2: Convert to fraction form
    86,692.72/130,027.28 = 23,516.90/x
  3. Step 3: Cross multiply
    86,692.72x = 130,027.28 × 23,516.90
  4. Step 4: Simplify right side
    86,692.72x = 3,057,838,924.89
  5. Step 5: Solve for x
    x = 3,057,838,924.89/86,692.72
  6. Step 6: Final answer
    x = 35,272.15

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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.