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Finding the Fourth Proportional to 9,058.63, 13,585.21 and 3,213.88

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Solution

The fourth proportional to 9,058.63, 13,585.21 and 3,213.88 is: 4,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,058.63 : 13,585.21 = 3,213.88 : x
  2. Step 2: Convert to fraction form
    9,058.63/13,585.21 = 3,213.88/x
  3. Step 3: Cross multiply
    9,058.63x = 13,585.21 × 3,213.88
  4. Step 4: Simplify right side
    9,058.63x = 43,661,234.71
  5. Step 5: Solve for x
    x = 43,661,234.71/9,058.63
  6. Step 6: Final answer
    x = 4,819.85

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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.