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Finding the Fourth Proportional to 1.63, 2.44 and 1.13

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Solution

The fourth proportional to 1.63, 2.44 and 1.13 is: 1.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.63 : 2.44 = 1.13 : x
  2. Step 2: Convert to fraction form
    1.63/2.44 = 1.13/x
  3. Step 3: Cross multiply
    1.63x = 2.44 × 1.13
  4. Step 4: Simplify right side
    1.63x = 2.76
  5. Step 5: Solve for x
    x = 2.76/1.63
  6. Step 6: Final answer
    x = 1.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.