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Finding the Fourth Proportional to 32.16, 48.26 and 20.14

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Solution

The fourth proportional to 32.16, 48.26 and 20.14 is: 30.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.16 : 48.26 = 20.14 : x
  2. Step 2: Convert to fraction form
    32.16/48.26 = 20.14/x
  3. Step 3: Cross multiply
    32.16x = 48.26 × 20.14
  4. Step 4: Simplify right side
    32.16x = 971.96
  5. Step 5: Solve for x
    x = 971.96/32.16
  6. Step 6: Final answer
    x = 30.22

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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.