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Finding the Fourth Proportional to 9.46, 14.16 and 6.60

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Solution

The fourth proportional to 9.46, 14.16 and 6.60 is: 9.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.46 : 14.16 = 6.60 : x
  2. Step 2: Convert to fraction form
    9.46/14.16 = 6.60/x
  3. Step 3: Cross multiply
    9.46x = 14.16 × 6.60
  4. Step 4: Simplify right side
    9.46x = 93.46
  5. Step 5: Solve for x
    x = 93.46/9.46
  6. Step 6: Final answer
    x = 9.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.