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Finding the Fourth Proportional to 44.16, 66.24 and 29.68

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Solution

The fourth proportional to 44.16, 66.24 and 29.68 is: 44.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.16 : 66.24 = 29.68 : x
  2. Step 2: Convert to fraction form
    44.16/66.24 = 29.68/x
  3. Step 3: Cross multiply
    44.16x = 66.24 × 29.68
  4. Step 4: Simplify right side
    44.16x = 1,965.67
  5. Step 5: Solve for x
    x = 1,965.67/44.16
  6. Step 6: Final answer
    x = 44.52

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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.