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Finding the Fourth Proportional to 16,880, 23,294.12 and 9,326.65

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Solution

The fourth proportional to 16,880, 23,294.12 and 9,326.65 is: 12,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880 : 23,294.12 = 9,326.65 : x
  2. Step 2: Convert to fraction form
    16,880/23,294.12 = 9,326.65/x
  3. Step 3: Cross multiply
    16,880x = 23,294.12 × 9,326.65
  4. Step 4: Simplify right side
    16,880x = 217,256,104.30
  5. Step 5: Solve for x
    x = 217,256,104.30/16,880
  6. Step 6: Final answer
    x = 12,870.62

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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.