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Finding the Fourth Proportional to 23.63, 32.61 and 16.74

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Solution

The fourth proportional to 23.63, 32.61 and 16.74 is: 23.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.63 : 32.61 = 16.74 : x
  2. Step 2: Convert to fraction form
    23.63/32.61 = 16.74/x
  3. Step 3: Cross multiply
    23.63x = 32.61 × 16.74
  4. Step 4: Simplify right side
    23.63x = 545.89
  5. Step 5: Solve for x
    x = 545.89/23.63
  6. Step 6: Final answer
    x = 23.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.