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Finding the Fourth Proportional to 97, 145.44 and 48.24

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Solution

The fourth proportional to 97, 145.44 and 48.24 is: 72.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    97 : 145.44 = 48.24 : x
  2. Step 2: Convert to fraction form
    97/145.44 = 48.24/x
  3. Step 3: Cross multiply
    97x = 145.44 × 48.24
  4. Step 4: Simplify right side
    97x = 7,016.03
  5. Step 5: Solve for x
    x = 7,016.03/97
  6. Step 6: Final answer
    x = 72.33

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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.