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Finding the Third Proportional to 442.13 and 929.67

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Solution

The third proportional to 442.13 and 929.67 is: 1,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.13 : 929.67 = 929.67 : x
  2. Step 2: Convert to fraction form
    442.13/929.67 = 929.67/x
  3. Step 3: Cross multiply
    442.13x = 929.67 × 929.67
  4. Step 4: Simplify right side
    442.13x = 864,289.80
  5. Step 5: Solve for x
    x = 864,289.80/442.13
  6. Step 6: Final answer
    x = 1,954.85

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.