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Finding the Fourth Proportional to 9.44, 13 and 9.08

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Solution

The fourth proportional to 9.44, 13 and 9.08 is: 12.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.44 : 13 = 9.08 : x
  2. Step 2: Convert to fraction form
    9.44/13 = 9.08/x
  3. Step 3: Cross multiply
    9.44x = 13 × 9.08
  4. Step 4: Simplify right side
    9.44x = 118.04
  5. Step 5: Solve for x
    x = 118.04/9.44
  6. Step 6: Final answer
    x = 12.50

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1.5x scale

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.