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Finding the Fourth Proportional to 35.45, 53.16 and 11.07

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Solution

The fourth proportional to 35.45, 53.16 and 11.07 is: 16.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.45 : 53.16 = 11.07 : x
  2. Step 2: Convert to fraction form
    35.45/53.16 = 11.07/x
  3. Step 3: Cross multiply
    35.45x = 53.16 × 11.07
  4. Step 4: Simplify right side
    35.45x = 588.22
  5. Step 5: Solve for x
    x = 588.22/35.45
  6. Step 6: Final answer
    x = 16.59

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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.