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Finding the Fourth Proportional to 16,639.63, 22,961.78 and 9,085.84

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Solution

The fourth proportional to 16,639.63, 22,961.78 and 9,085.84 is: 12,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,639.63 : 22,961.78 = 9,085.84 : x
  2. Step 2: Convert to fraction form
    16,639.63/22,961.78 = 9,085.84/x
  3. Step 3: Cross multiply
    16,639.63x = 22,961.78 × 9,085.84
  4. Step 4: Simplify right side
    16,639.63x = 208,626,990.43
  5. Step 5: Solve for x
    x = 208,626,990.43/16,639.63
  6. Step 6: Final answer
    x = 12,537.96

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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.