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Finding the Fourth Proportional to 35.12, 48.43 and 25.93

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Solution

The fourth proportional to 35.12, 48.43 and 25.93 is: 35.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.12 : 48.43 = 25.93 : x
  2. Step 2: Convert to fraction form
    35.12/48.43 = 25.93/x
  3. Step 3: Cross multiply
    35.12x = 48.43 × 25.93
  4. Step 4: Simplify right side
    35.12x = 1,255.46
  5. Step 5: Solve for x
    x = 1,255.46/35.12
  6. Step 6: Final answer
    x = 35.75

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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.