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Finding the Fourth Proportional to 13,252.92, 18,288.92 and 7,203.12

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Solution

The fourth proportional to 13,252.92, 18,288.92 and 7,203.12 is: 9,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.92 : 18,288.92 = 7,203.12 : x
  2. Step 2: Convert to fraction form
    13,252.92/18,288.92 = 7,203.12/x
  3. Step 3: Cross multiply
    13,252.92x = 18,288.92 × 7,203.12
  4. Step 4: Simplify right side
    13,252.92x = 131,737,285.43
  5. Step 5: Solve for x
    x = 131,737,285.43/13,252.92
  6. Step 6: Final answer
    x = 9,940.25

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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.