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Finding the Fourth Proportional to 1.65, 2.46 and 1.41

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Solution

The fourth proportional to 1.65, 2.46 and 1.41 is: 2.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.65 : 2.46 = 1.41 : x
  2. Step 2: Convert to fraction form
    1.65/2.46 = 1.41/x
  3. Step 3: Cross multiply
    1.65x = 2.46 × 1.41
  4. Step 4: Simplify right side
    1.65x = 3.46
  5. Step 5: Solve for x
    x = 3.46/1.65
  6. Step 6: Final answer
    x = 2.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.