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Finding the Fourth Proportional to 44.34, 66.54 and 29.12

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Solution

The fourth proportional to 44.34, 66.54 and 29.12 is: 43.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.34 : 66.54 = 29.12 : x
  2. Step 2: Convert to fraction form
    44.34/66.54 = 29.12/x
  3. Step 3: Cross multiply
    44.34x = 66.54 × 29.12
  4. Step 4: Simplify right side
    44.34x = 1,937.50
  5. Step 5: Solve for x
    x = 1,937.50/44.34
  6. Step 6: Final answer
    x = 43.70

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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.