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Finding the Fourth Proportional to 70,027.35, 105,018.17 and 22,631.30

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Solution

The fourth proportional to 70,027.35, 105,018.17 and 22,631.30 is: 33,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,027.35 : 105,018.17 = 22,631.30 : x
  2. Step 2: Convert to fraction form
    70,027.35/105,018.17 = 22,631.30/x
  3. Step 3: Cross multiply
    70,027.35x = 105,018.17 × 22,631.30
  4. Step 4: Simplify right side
    70,027.35x = 2,376,697,860.11
  5. Step 5: Solve for x
    x = 2,376,697,860.11/70,027.35
  6. Step 6: Final answer
    x = 33,939.57

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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.