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Finding the Fourth Proportional to 34.99, 52.45 and 14.67

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Solution

The fourth proportional to 34.99, 52.45 and 14.67 is: 21.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.99 : 52.45 = 14.67 : x
  2. Step 2: Convert to fraction form
    34.99/52.45 = 14.67/x
  3. Step 3: Cross multiply
    34.99x = 52.45 × 14.67
  4. Step 4: Simplify right side
    34.99x = 769.40
  5. Step 5: Solve for x
    x = 769.40/34.99
  6. Step 6: Final answer
    x = 21.99

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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.