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Finding the Fourth Proportional to 11,605.82, 17,395.76 and 10,671.68

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Solution

The fourth proportional to 11,605.82, 17,395.76 and 10,671.68 is: 15,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.82 : 17,395.76 = 10,671.68 : x
  2. Step 2: Convert to fraction form
    11,605.82/17,395.76 = 10,671.68/x
  3. Step 3: Cross multiply
    11,605.82x = 17,395.76 × 10,671.68
  4. Step 4: Simplify right side
    11,605.82x = 185,642,054.25
  5. Step 5: Solve for x
    x = 185,642,054.25/11,605.82
  6. Step 6: Final answer
    x = 15,995.61

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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.