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Finding the Fourth Proportional to 10.64, 14.68 and 10.48

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Solution

The fourth proportional to 10.64, 14.68 and 10.48 is: 14.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.64 : 14.68 = 10.48 : x
  2. Step 2: Convert to fraction form
    10.64/14.68 = 10.48/x
  3. Step 3: Cross multiply
    10.64x = 14.68 × 10.48
  4. Step 4: Simplify right side
    10.64x = 153.85
  5. Step 5: Solve for x
    x = 153.85/10.64
  6. Step 6: Final answer
    x = 14.46

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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.