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Finding the Fourth Proportional to 11,897.74, 17,805.29 and 7,392.94

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Solution

The fourth proportional to 11,897.74, 17,805.29 and 7,392.94 is: 11,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.74 : 17,805.29 = 7,392.94 : x
  2. Step 2: Convert to fraction form
    11,897.74/17,805.29 = 7,392.94/x
  3. Step 3: Cross multiply
    11,897.74x = 17,805.29 × 7,392.94
  4. Step 4: Simplify right side
    11,897.74x = 131,633,541.65
  5. Step 5: Solve for x
    x = 131,633,541.65/11,897.74
  6. Step 6: Final answer
    x = 11,063.75

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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.