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Finding the Fourth Proportional to 35.44, 53.12 and 18.32

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Solution

The fourth proportional to 35.44, 53.12 and 18.32 is: 27.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.44 : 53.12 = 18.32 : x
  2. Step 2: Convert to fraction form
    35.44/53.12 = 18.32/x
  3. Step 3: Cross multiply
    35.44x = 53.12 × 18.32
  4. Step 4: Simplify right side
    35.44x = 973.14
  5. Step 5: Solve for x
    x = 973.14/35.44
  6. Step 6: Final answer
    x = 27.46

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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.