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Finding the Fourth Proportional to 17,238.68, 23,787.98 and 9,684.60

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Solution

The fourth proportional to 17,238.68, 23,787.98 and 9,684.60 is: 13,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,238.68 : 23,787.98 = 9,684.60 : x
  2. Step 2: Convert to fraction form
    17,238.68/23,787.98 = 9,684.60/x
  3. Step 3: Cross multiply
    17,238.68x = 23,787.98 × 9,684.60
  4. Step 4: Simplify right side
    17,238.68x = 230,377,071.11
  5. Step 5: Solve for x
    x = 230,377,071.11/17,238.68
  6. Step 6: Final answer
    x = 13,363.96

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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.