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Finding the Fourth Proportional to 2,460.99, 3,691.64 and 729.75

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Solution

The fourth proportional to 2,460.99, 3,691.64 and 729.75 is: 1,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.99 : 3,691.64 = 729.75 : x
  2. Step 2: Convert to fraction form
    2,460.99/3,691.64 = 729.75/x
  3. Step 3: Cross multiply
    2,460.99x = 3,691.64 × 729.75
  4. Step 4: Simplify right side
    2,460.99x = 2,693,974.29
  5. Step 5: Solve for x
    x = 2,693,974.29/2,460.99
  6. Step 6: Final answer
    x = 1,094.67

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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.