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Finding the Third Proportional to 0.74 and 4.32

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Solution

The third proportional to 0.74 and 4.32 is: 25.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.74 : 4.32 = 4.32 : x
  2. Step 2: Convert to fraction form
    0.74/4.32 = 4.32/x
  3. Step 3: Cross multiply
    0.74x = 4.32 × 4.32
  4. Step 4: Simplify right side
    0.74x = 18.70
  5. Step 5: Solve for x
    x = 18.70/0.74
  6. Step 6: Final answer
    x = 25.33

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Why These Related Problems?

These problems maintain the same ratio (5.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.