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Finding the Fourth Proportional to 35.16, 52.74 and 11.12

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Solution

The fourth proportional to 35.16, 52.74 and 11.12 is: 16.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.16 : 52.74 = 11.12 : x
  2. Step 2: Convert to fraction form
    35.16/52.74 = 11.12/x
  3. Step 3: Cross multiply
    35.16x = 52.74 × 11.12
  4. Step 4: Simplify right side
    35.16x = 586.21
  5. Step 5: Solve for x
    x = 586.21/35.16
  6. Step 6: Final answer
    x = 16.67

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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.