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Finding the Fourth Proportional to 14.84, 22.20 and 9.48

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Solution

The fourth proportional to 14.84, 22.20 and 9.48 is: 14.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.84 : 22.20 = 9.48 : x
  2. Step 2: Convert to fraction form
    14.84/22.20 = 9.48/x
  3. Step 3: Cross multiply
    14.84x = 22.20 × 9.48
  4. Step 4: Simplify right side
    14.84x = 210.46
  5. Step 5: Solve for x
    x = 210.46/14.84
  6. Step 6: Final answer
    x = 14.18

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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.