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Finding the Fourth Proportional to 2,455.85, 3,683.68 and 700.83

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Solution

The fourth proportional to 2,455.85, 3,683.68 and 700.83 is: 1,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.85 : 3,683.68 = 700.83 : x
  2. Step 2: Convert to fraction form
    2,455.85/3,683.68 = 700.83/x
  3. Step 3: Cross multiply
    2,455.85x = 3,683.68 × 700.83
  4. Step 4: Simplify right side
    2,455.85x = 2,581,631.70
  5. Step 5: Solve for x
    x = 2,581,631.70/2,455.85
  6. Step 6: Final answer
    x = 1,051.22

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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.