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Finding the Fourth Proportional to 16,511.10, 22,785.19 and 8,957.41

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Solution

The fourth proportional to 16,511.10, 22,785.19 and 8,957.41 is: 12,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,511.10 : 22,785.19 = 8,957.41 : x
  2. Step 2: Convert to fraction form
    16,511.10/22,785.19 = 8,957.41/x
  3. Step 3: Cross multiply
    16,511.10x = 22,785.19 × 8,957.41
  4. Step 4: Simplify right side
    16,511.10x = 204,096,130.04
  5. Step 5: Solve for x
    x = 204,096,130.04/16,511.10
  6. Step 6: Final answer
    x = 12,361.15

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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.