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Finding the Fourth Proportional to 32.14, 48.14 and 18.60

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Solution

The fourth proportional to 32.14, 48.14 and 18.60 is: 27.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.14 : 48.14 = 18.60 : x
  2. Step 2: Convert to fraction form
    32.14/48.14 = 18.60/x
  3. Step 3: Cross multiply
    32.14x = 48.14 × 18.60
  4. Step 4: Simplify right side
    32.14x = 895.40
  5. Step 5: Solve for x
    x = 895.40/32.14
  6. Step 6: Final answer
    x = 27.86

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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.