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Finding the Fourth Proportional to 17,339.84, 23,915.84 and 11,680.64

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Solution

The fourth proportional to 17,339.84, 23,915.84 and 11,680.64 is: 16,110.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,339.84 : 23,915.84 = 11,680.64 : x
  2. Step 2: Convert to fraction form
    17,339.84/23,915.84 = 11,680.64/x
  3. Step 3: Cross multiply
    17,339.84x = 23,915.84 × 11,680.64
  4. Step 4: Simplify right side
    17,339.84x = 279,352,317.34
  5. Step 5: Solve for x
    x = 279,352,317.34/17,339.84
  6. Step 6: Final answer
    x = 16,110.43

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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.