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Finding the Fourth Proportional to 52.38, 78.98 and 46.44

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Solution

The fourth proportional to 52.38, 78.98 and 46.44 is: 70.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.38 : 78.98 = 46.44 : x
  2. Step 2: Convert to fraction form
    52.38/78.98 = 46.44/x
  3. Step 3: Cross multiply
    52.38x = 78.98 × 46.44
  4. Step 4: Simplify right side
    52.38x = 3,667.83
  5. Step 5: Solve for x
    x = 3,667.83/52.38
  6. Step 6: Final answer
    x = 70.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.