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Finding the Fourth Proportional to 29.71, 44.57 and 11.66

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Solution

The fourth proportional to 29.71, 44.57 and 11.66 is: 17.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.71 : 44.57 = 11.66 : x
  2. Step 2: Convert to fraction form
    29.71/44.57 = 11.66/x
  3. Step 3: Cross multiply
    29.71x = 44.57 × 11.66
  4. Step 4: Simplify right side
    29.71x = 519.74
  5. Step 5: Solve for x
    x = 519.74/29.71
  6. Step 6: Final answer
    x = 17.50

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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.