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Finding the Fourth Proportional to 14,646.29, 21,943.91 and 8,789.99

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Solution

The fourth proportional to 14,646.29, 21,943.91 and 8,789.99 is: 13,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.29 : 21,943.91 = 8,789.99 : x
  2. Step 2: Convert to fraction form
    14,646.29/21,943.91 = 8,789.99/x
  3. Step 3: Cross multiply
    14,646.29x = 21,943.91 × 8,789.99
  4. Step 4: Simplify right side
    14,646.29x = 192,886,661.72
  5. Step 5: Solve for x
    x = 192,886,661.72/14,646.29
  6. Step 6: Final answer
    x = 13,169.66

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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.