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Finding the Fourth Proportional to 56.58, 84.50 and 44.42

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Solution

The fourth proportional to 56.58, 84.50 and 44.42 is: 66.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.58 : 84.50 = 44.42 : x
  2. Step 2: Convert to fraction form
    56.58/84.50 = 44.42/x
  3. Step 3: Cross multiply
    56.58x = 84.50 × 44.42
  4. Step 4: Simplify right side
    56.58x = 3,753.49
  5. Step 5: Solve for x
    x = 3,753.49/56.58
  6. Step 6: Final answer
    x = 66.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.