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Finding the Fourth Proportional to 10.16, 14 and 9.26

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Solution

The fourth proportional to 10.16, 14 and 9.26 is: 12.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.16 : 14 = 9.26 : x
  2. Step 2: Convert to fraction form
    10.16/14 = 9.26/x
  3. Step 3: Cross multiply
    10.16x = 14 × 9.26
  4. Step 4: Simplify right side
    10.16x = 129.64
  5. Step 5: Solve for x
    x = 129.64/10.16
  6. Step 6: Final answer
    x = 12.76

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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.