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Finding the Fourth Proportional to 2,322.14, 3,483.41 and 761.67

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Solution

The fourth proportional to 2,322.14, 3,483.41 and 761.67 is: 1,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.14 : 3,483.41 = 761.67 : x
  2. Step 2: Convert to fraction form
    2,322.14/3,483.41 = 761.67/x
  3. Step 3: Cross multiply
    2,322.14x = 3,483.41 × 761.67
  4. Step 4: Simplify right side
    2,322.14x = 2,653,205.09
  5. Step 5: Solve for x
    x = 2,653,205.09/2,322.14
  6. Step 6: Final answer
    x = 1,142.57

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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.