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Finding the Fourth Proportional to 35.42, 48.90 and 32

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Solution

The fourth proportional to 35.42, 48.90 and 32 is: 44.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.42 : 48.90 = 32 : x
  2. Step 2: Convert to fraction form
    35.42/48.90 = 32/x
  3. Step 3: Cross multiply
    35.42x = 48.90 × 32
  4. Step 4: Simplify right side
    35.42x = 1,564.80
  5. Step 5: Solve for x
    x = 1,564.80/35.42
  6. Step 6: Final answer
    x = 44.18

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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.