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Finding the Fourth Proportional to 35.21, 48.56 and 22.93

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Solution

The fourth proportional to 35.21, 48.56 and 22.93 is: 31.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.21 : 48.56 = 22.93 : x
  2. Step 2: Convert to fraction form
    35.21/48.56 = 22.93/x
  3. Step 3: Cross multiply
    35.21x = 48.56 × 22.93
  4. Step 4: Simplify right side
    35.21x = 1,113.24
  5. Step 5: Solve for x
    x = 1,113.24/35.21
  6. Step 6: Final answer
    x = 31.62

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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.