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Finding the Fourth Proportional to 66,018.62, 99,027.93 and 26,581.34

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Solution

The fourth proportional to 66,018.62, 99,027.93 and 26,581.34 is: 39,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.62 : 99,027.93 = 26,581.34 : x
  2. Step 2: Convert to fraction form
    66,018.62/99,027.93 = 26,581.34/x
  3. Step 3: Cross multiply
    66,018.62x = 99,027.93 × 26,581.34
  4. Step 4: Simplify right side
    66,018.62x = 2,632,295,076.83
  5. Step 5: Solve for x
    x = 2,632,295,076.83/66,018.62
  6. Step 6: Final answer
    x = 39,872.01

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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.