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Finding the Fourth Proportional to 16,461, 22,716.36 and 9,009

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Solution

The fourth proportional to 16,461, 22,716.36 and 9,009 is: 12,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,461 : 22,716.36 = 9,009 : x
  2. Step 2: Convert to fraction form
    16,461/22,716.36 = 9,009/x
  3. Step 3: Cross multiply
    16,461x = 22,716.36 × 9,009
  4. Step 4: Simplify right side
    16,461x = 204,651,687.24
  5. Step 5: Solve for x
    x = 204,651,687.24/16,461
  6. Step 6: Final answer
    x = 12,432.52

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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.