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Finding the Fourth Proportional to 17,555.88, 26,340.78 and 7,696.71

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Solution

The fourth proportional to 17,555.88, 26,340.78 and 7,696.71 is: 11,548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,555.88 : 26,340.78 = 7,696.71 : x
  2. Step 2: Convert to fraction form
    17,555.88/26,340.78 = 7,696.71/x
  3. Step 3: Cross multiply
    17,555.88x = 26,340.78 × 7,696.71
  4. Step 4: Simplify right side
    17,555.88x = 202,737,344.83
  5. Step 5: Solve for x
    x = 202,737,344.83/17,555.88
  6. Step 6: Final answer
    x = 11,548.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.