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Finding the Fourth Proportional to 4.63, 6.87 and 4.60

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Solution

The fourth proportional to 4.63, 6.87 and 4.60 is: 6.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.63 : 6.87 = 4.60 : x
  2. Step 2: Convert to fraction form
    4.63/6.87 = 4.60/x
  3. Step 3: Cross multiply
    4.63x = 6.87 × 4.60
  4. Step 4: Simplify right side
    4.63x = 31.60
  5. Step 5: Solve for x
    x = 31.60/4.63
  6. Step 6: Final answer
    x = 6.83

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.