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Finding the Fourth Proportional to 15.10, 22.64 and 14.67

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Solution

The fourth proportional to 15.10, 22.64 and 14.67 is: 22.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.10 : 22.64 = 14.67 : x
  2. Step 2: Convert to fraction form
    15.10/22.64 = 14.67/x
  3. Step 3: Cross multiply
    15.10x = 22.64 × 14.67
  4. Step 4: Simplify right side
    15.10x = 332.17
  5. Step 5: Solve for x
    x = 332.17/15.10
  6. Step 6: Final answer
    x = 22.00

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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.