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Finding the Fourth Proportional to 23.78, 35.66 and 14.76

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Solution

The fourth proportional to 23.78, 35.66 and 14.76 is: 22.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.78 : 35.66 = 14.76 : x
  2. Step 2: Convert to fraction form
    23.78/35.66 = 14.76/x
  3. Step 3: Cross multiply
    23.78x = 35.66 × 14.76
  4. Step 4: Simplify right side
    23.78x = 526.34
  5. Step 5: Solve for x
    x = 526.34/23.78
  6. Step 6: Final answer
    x = 22.13

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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.