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Finding the Fourth Proportional to 10.58, 14.61 and 6.94

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Solution

The fourth proportional to 10.58, 14.61 and 6.94 is: 9.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.58 : 14.61 = 6.94 : x
  2. Step 2: Convert to fraction form
    10.58/14.61 = 6.94/x
  3. Step 3: Cross multiply
    10.58x = 14.61 × 6.94
  4. Step 4: Simplify right side
    10.58x = 101.39
  5. Step 5: Solve for x
    x = 101.39/10.58
  6. Step 6: Final answer
    x = 9.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.