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Finding the Fourth Proportional to 35.48, 52.80 and 34.48

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Solution

The fourth proportional to 35.48, 52.80 and 34.48 is: 51.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.48 : 52.80 = 34.48 : x
  2. Step 2: Convert to fraction form
    35.48/52.80 = 34.48/x
  3. Step 3: Cross multiply
    35.48x = 52.80 × 34.48
  4. Step 4: Simplify right side
    35.48x = 1,820.54
  5. Step 5: Solve for x
    x = 1,820.54/35.48
  6. Step 6: Final answer
    x = 51.31

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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.