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Finding the Fourth Proportional to 14,163, 21,244.68 and 4,929

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Solution

The fourth proportional to 14,163, 21,244.68 and 4,929 is: 7,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,163 : 21,244.68 = 4,929 : x
  2. Step 2: Convert to fraction form
    14,163/21,244.68 = 4,929/x
  3. Step 3: Cross multiply
    14,163x = 21,244.68 × 4,929
  4. Step 4: Simplify right side
    14,163x = 104,715,027.72
  5. Step 5: Solve for x
    x = 104,715,027.72/14,163
  6. Step 6: Final answer
    x = 7,393.56

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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.