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Finding the Fourth Proportional to 14,296, 21,429.28 and 8,058.88

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Solution

The fourth proportional to 14,296, 21,429.28 and 8,058.88 is: 12,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,296 : 21,429.28 = 8,058.88 : x
  2. Step 2: Convert to fraction form
    14,296/21,429.28 = 8,058.88/x
  3. Step 3: Cross multiply
    14,296x = 21,429.28 × 8,058.88
  4. Step 4: Simplify right side
    14,296x = 172,695,996.01
  5. Step 5: Solve for x
    x = 172,695,996.01/14,296
  6. Step 6: Final answer
    x = 12,080.02

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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.