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Finding the Third Proportional to 0.19 and 0.47

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Solution

The third proportional to 0.19 and 0.47 is: 1.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.19 : 0.47 = 0.47 : x
  2. Step 2: Convert to fraction form
    0.19/0.47 = 0.47/x
  3. Step 3: Cross multiply
    0.19x = 0.47 × 0.47
  4. Step 4: Simplify right side
    0.19x = 0.22
  5. Step 5: Solve for x
    x = 0.22/0.19
  6. Step 6: Final answer
    x = 1.17

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Why These Related Problems?

These problems maintain the same ratio (2.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.