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Finding the Fourth Proportional to 16,159.54, 22,299.77 and 8,989.44

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Solution

The fourth proportional to 16,159.54, 22,299.77 and 8,989.44 is: 12,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,159.54 : 22,299.77 = 8,989.44 : x
  2. Step 2: Convert to fraction form
    16,159.54/22,299.77 = 8,989.44/x
  3. Step 3: Cross multiply
    16,159.54x = 22,299.77 × 8,989.44
  4. Step 4: Simplify right side
    16,159.54x = 200,462,466.90
  5. Step 5: Solve for x
    x = 200,462,466.90/16,159.54
  6. Step 6: Final answer
    x = 12,405.21

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1.5x scale

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.