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Finding the Fourth Proportional to 16,616, 22,930.08 and 9,164

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Solution

The fourth proportional to 16,616, 22,930.08 and 9,164 is: 12,646.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616 : 22,930.08 = 9,164 : x
  2. Step 2: Convert to fraction form
    16,616/22,930.08 = 9,164/x
  3. Step 3: Cross multiply
    16,616x = 22,930.08 × 9,164
  4. Step 4: Simplify right side
    16,616x = 210,131,253.12
  5. Step 5: Solve for x
    x = 210,131,253.12/16,616
  6. Step 6: Final answer
    x = 12,646.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.