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Finding the Fourth Proportional to 14.88, 22.30 and 10.58

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Solution

The fourth proportional to 14.88, 22.30 and 10.58 is: 15.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.88 : 22.30 = 10.58 : x
  2. Step 2: Convert to fraction form
    14.88/22.30 = 10.58/x
  3. Step 3: Cross multiply
    14.88x = 22.30 × 10.58
  4. Step 4: Simplify right side
    14.88x = 235.93
  5. Step 5: Solve for x
    x = 235.93/14.88
  6. Step 6: Final answer
    x = 15.86

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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.