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Finding the Fourth Proportional to 25.90, 35.50 and 23.46

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Solution

The fourth proportional to 25.90, 35.50 and 23.46 is: 32.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.90 : 35.50 = 23.46 : x
  2. Step 2: Convert to fraction form
    25.90/35.50 = 23.46/x
  3. Step 3: Cross multiply
    25.90x = 35.50 × 23.46
  4. Step 4: Simplify right side
    25.90x = 832.83
  5. Step 5: Solve for x
    x = 832.83/25.90
  6. Step 6: Final answer
    x = 32.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.