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Finding the Fourth Proportional to 17,369.88, 23,980.74 and 11,411.91

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Solution

The fourth proportional to 17,369.88, 23,980.74 and 11,411.91 is: 15,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,369.88 : 23,980.74 = 11,411.91 : x
  2. Step 2: Convert to fraction form
    17,369.88/23,980.74 = 11,411.91/x
  3. Step 3: Cross multiply
    17,369.88x = 23,980.74 × 11,411.91
  4. Step 4: Simplify right side
    17,369.88x = 273,666,046.61
  5. Step 5: Solve for x
    x = 273,666,046.61/17,369.88
  6. Step 6: Final answer
    x = 15,755.21

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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.