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Finding the Fourth Proportional to 32.16, 44.28 and 27

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Solution

The fourth proportional to 32.16, 44.28 and 27 is: 37.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.16 : 44.28 = 27 : x
  2. Step 2: Convert to fraction form
    32.16/44.28 = 27/x
  3. Step 3: Cross multiply
    32.16x = 44.28 × 27
  4. Step 4: Simplify right side
    32.16x = 1,195.56
  5. Step 5: Solve for x
    x = 1,195.56/32.16
  6. Step 6: Final answer
    x = 37.18

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1.5x scale

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.