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Finding the Fourth Proportional to 956.20, 1,262.67 and 956.20

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Solution

The fourth proportional to 956.20, 1,262.67 and 956.20 is: 1,262.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.20 : 1,262.67 = 956.20 : x
  2. Step 2: Convert to fraction form
    956.20/1,262.67 = 956.20/x
  3. Step 3: Cross multiply
    956.20x = 1,262.67 × 956.20
  4. Step 4: Simplify right side
    956.20x = 1,207,365.05
  5. Step 5: Solve for x
    x = 1,207,365.05/956.20
  6. Step 6: Final answer
    x = 1,262.67

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.