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Finding the Fourth Proportional to 14.99, 22.46 and 14.57

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Solution

The fourth proportional to 14.99, 22.46 and 14.57 is: 21.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.99 : 22.46 = 14.57 : x
  2. Step 2: Convert to fraction form
    14.99/22.46 = 14.57/x
  3. Step 3: Cross multiply
    14.99x = 22.46 × 14.57
  4. Step 4: Simplify right side
    14.99x = 327.21
  5. Step 5: Solve for x
    x = 327.21/14.99
  6. Step 6: Final answer
    x = 21.82

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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.