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Finding the Fourth Proportional to 35.47, 53.22 and 11.44

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Solution

The fourth proportional to 35.47, 53.22 and 11.44 is: 17.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.47 : 53.22 = 11.44 : x
  2. Step 2: Convert to fraction form
    35.47/53.22 = 11.44/x
  3. Step 3: Cross multiply
    35.47x = 53.22 × 11.44
  4. Step 4: Simplify right side
    35.47x = 608.84
  5. Step 5: Solve for x
    x = 608.84/35.47
  6. Step 6: Final answer
    x = 17.16

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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.