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Finding the Fourth Proportional to 12,336.87, 17,020.71 and 7,027.92

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Solution

The fourth proportional to 12,336.87, 17,020.71 and 7,027.92 is: 9,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,336.87 : 17,020.71 = 7,027.92 : x
  2. Step 2: Convert to fraction form
    12,336.87/17,020.71 = 7,027.92/x
  3. Step 3: Cross multiply
    12,336.87x = 17,020.71 × 7,027.92
  4. Step 4: Simplify right side
    12,336.87x = 119,620,188.22
  5. Step 5: Solve for x
    x = 119,620,188.22/12,336.87
  6. Step 6: Final answer
    x = 9,696.15

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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.