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Finding the Fourth Proportional to 35.52, 53.28 and 11.14

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Solution

The fourth proportional to 35.52, 53.28 and 11.14 is: 16.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.52 : 53.28 = 11.14 : x
  2. Step 2: Convert to fraction form
    35.52/53.28 = 11.14/x
  3. Step 3: Cross multiply
    35.52x = 53.28 × 11.14
  4. Step 4: Simplify right side
    35.52x = 593.71
  5. Step 5: Solve for x
    x = 593.71/35.52
  6. Step 6: Final answer
    x = 16.72

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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.