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Finding the Fourth Proportional to 86,956.66, 130,453.72 and 26,983.96

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Solution

The fourth proportional to 86,956.66, 130,453.72 and 26,983.96 is: 40,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,956.66 : 130,453.72 = 26,983.96 : x
  2. Step 2: Convert to fraction form
    86,956.66/130,453.72 = 26,983.96/x
  3. Step 3: Cross multiply
    86,956.66x = 130,453.72 × 26,983.96
  4. Step 4: Simplify right side
    86,956.66x = 3,520,157,962.33
  5. Step 5: Solve for x
    x = 3,520,157,962.33/86,956.66
  6. Step 6: Final answer
    x = 40,481.75

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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.