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Finding the Fourth Proportional to 10.69, 14.63 and 10.48

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Solution

The fourth proportional to 10.69, 14.63 and 10.48 is: 14.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.69 : 14.63 = 10.48 : x
  2. Step 2: Convert to fraction form
    10.69/14.63 = 10.48/x
  3. Step 3: Cross multiply
    10.69x = 14.63 × 10.48
  4. Step 4: Simplify right side
    10.69x = 153.32
  5. Step 5: Solve for x
    x = 153.32/10.69
  6. Step 6: Final answer
    x = 14.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.