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Finding the Fourth Proportional to 11,661.63, 17,494.19 and 3,761.49

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Solution

The fourth proportional to 11,661.63, 17,494.19 and 3,761.49 is: 5,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.63 : 17,494.19 = 3,761.49 : x
  2. Step 2: Convert to fraction form
    11,661.63/17,494.19 = 3,761.49/x
  3. Step 3: Cross multiply
    11,661.63x = 17,494.19 × 3,761.49
  4. Step 4: Simplify right side
    11,661.63x = 65,804,220.74
  5. Step 5: Solve for x
    x = 65,804,220.74/11,661.63
  6. Step 6: Final answer
    x = 5,642.80

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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.