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Finding the Fourth Proportional to 16,405.26, 22,639.26 and 8,953.26

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Solution

The fourth proportional to 16,405.26, 22,639.26 and 8,953.26 is: 12,355.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.26 : 22,639.26 = 8,953.26 : x
  2. Step 2: Convert to fraction form
    16,405.26/22,639.26 = 8,953.26/x
  3. Step 3: Cross multiply
    16,405.26x = 22,639.26 × 8,953.26
  4. Step 4: Simplify right side
    16,405.26x = 202,695,180.99
  5. Step 5: Solve for x
    x = 202,695,180.99/16,405.26
  6. Step 6: Final answer
    x = 12,355.50

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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.