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Finding the Fourth Proportional to 29,469.12, 44,208 and 8,689.92

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Solution

The fourth proportional to 29,469.12, 44,208 and 8,689.92 is: 13,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,469.12 : 44,208 = 8,689.92 : x
  2. Step 2: Convert to fraction form
    29,469.12/44,208 = 8,689.92/x
  3. Step 3: Cross multiply
    29,469.12x = 44,208 × 8,689.92
  4. Step 4: Simplify right side
    29,469.12x = 384,163,983.36
  5. Step 5: Solve for x
    x = 384,163,983.36/29,469.12
  6. Step 6: Final answer
    x = 13,036.15

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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.