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Finding the Fourth Proportional to 3.60, 4.93 and 3.58

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Solution

The fourth proportional to 3.60, 4.93 and 3.58 is: 4.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.60 : 4.93 = 3.58 : x
  2. Step 2: Convert to fraction form
    3.60/4.93 = 3.58/x
  3. Step 3: Cross multiply
    3.60x = 4.93 × 3.58
  4. Step 4: Simplify right side
    3.60x = 17.63
  5. Step 5: Solve for x
    x = 17.63/3.60
  6. Step 6: Final answer
    x = 4.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.