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Finding the Fourth Proportional to 52.19, 78.14 and 44.04

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Solution

The fourth proportional to 52.19, 78.14 and 44.04 is: 65.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.19 : 78.14 = 44.04 : x
  2. Step 2: Convert to fraction form
    52.19/78.14 = 44.04/x
  3. Step 3: Cross multiply
    52.19x = 78.14 × 44.04
  4. Step 4: Simplify right side
    52.19x = 3,441.56
  5. Step 5: Solve for x
    x = 3,441.56/52.19
  6. Step 6: Final answer
    x = 65.94

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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.