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Finding the Fourth Proportional to 9.58, 14.29 and 7.54

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Solution

The fourth proportional to 9.58, 14.29 and 7.54 is: 11.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.58 : 14.29 = 7.54 : x
  2. Step 2: Convert to fraction form
    9.58/14.29 = 7.54/x
  3. Step 3: Cross multiply
    9.58x = 14.29 × 7.54
  4. Step 4: Simplify right side
    9.58x = 107.75
  5. Step 5: Solve for x
    x = 107.75/9.58
  6. Step 6: Final answer
    x = 11.25

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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.