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Finding the Fourth Proportional to 15.16, 22.87 and 15.01

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Solution

The fourth proportional to 15.16, 22.87 and 15.01 is: 22.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.16 : 22.87 = 15.01 : x
  2. Step 2: Convert to fraction form
    15.16/22.87 = 15.01/x
  3. Step 3: Cross multiply
    15.16x = 22.87 × 15.01
  4. Step 4: Simplify right side
    15.16x = 343.35
  5. Step 5: Solve for x
    x = 343.35/15.16
  6. Step 6: Final answer
    x = 22.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.