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Finding the Fourth Proportional to 16,639.32, 22,962.24 and 9,187.32

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Solution

The fourth proportional to 16,639.32, 22,962.24 and 9,187.32 is: 12,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,639.32 : 22,962.24 = 9,187.32 : x
  2. Step 2: Convert to fraction form
    16,639.32/22,962.24 = 9,187.32/x
  3. Step 3: Cross multiply
    16,639.32x = 22,962.24 × 9,187.32
  4. Step 4: Simplify right side
    16,639.32x = 210,961,446.80
  5. Step 5: Solve for x
    x = 210,961,446.80/16,639.32
  6. Step 6: Final answer
    x = 12,678.49

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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.