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Finding the Fourth Proportional to 29,311.72, 43,968.78 and 8,535.16

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Solution

The fourth proportional to 29,311.72, 43,968.78 and 8,535.16 is: 12,803.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,311.72 : 43,968.78 = 8,535.16 : x
  2. Step 2: Convert to fraction form
    29,311.72/43,968.78 = 8,535.16/x
  3. Step 3: Cross multiply
    29,311.72x = 43,968.78 × 8,535.16
  4. Step 4: Simplify right side
    29,311.72x = 375,280,572.30
  5. Step 5: Solve for x
    x = 375,280,572.30/29,311.72
  6. Step 6: Final answer
    x = 12,803.09

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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.