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Finding the Fourth Proportional to 35.56, 53.62 and 30.25

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Solution

The fourth proportional to 35.56, 53.62 and 30.25 is: 45.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.56 : 53.62 = 30.25 : x
  2. Step 2: Convert to fraction form
    35.56/53.62 = 30.25/x
  3. Step 3: Cross multiply
    35.56x = 53.62 × 30.25
  4. Step 4: Simplify right side
    35.56x = 1,622.01
  5. Step 5: Solve for x
    x = 1,622.01/35.56
  6. Step 6: Final answer
    x = 45.61

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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.