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Finding the Fourth Proportional to 25.94, 39.10 and 23

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Solution

The fourth proportional to 25.94, 39.10 and 23 is: 34.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.94 : 39.10 = 23 : x
  2. Step 2: Convert to fraction form
    25.94/39.10 = 23/x
  3. Step 3: Cross multiply
    25.94x = 39.10 × 23
  4. Step 4: Simplify right side
    25.94x = 899.19
  5. Step 5: Solve for x
    x = 899.19/25.94
  6. Step 6: Final answer
    x = 34.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.