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Finding the Fourth Proportional to 4.66, 7.02 and 4.58

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Solution

The fourth proportional to 4.66, 7.02 and 4.58 is: 6.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.66 : 7.02 = 4.58 : x
  2. Step 2: Convert to fraction form
    4.66/7.02 = 4.58/x
  3. Step 3: Cross multiply
    4.66x = 7.02 × 4.58
  4. Step 4: Simplify right side
    4.66x = 32.15
  5. Step 5: Solve for x
    x = 32.15/4.66
  6. Step 6: Final answer
    x = 6.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.