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Finding the Fourth Proportional to 2,613.63, 3,920.99 and 882.26

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Solution

The fourth proportional to 2,613.63, 3,920.99 and 882.26 is: 1,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.63 : 3,920.99 = 882.26 : x
  2. Step 2: Convert to fraction form
    2,613.63/3,920.99 = 882.26/x
  3. Step 3: Cross multiply
    2,613.63x = 3,920.99 × 882.26
  4. Step 4: Simplify right side
    2,613.63x = 3,459,308.62
  5. Step 5: Solve for x
    x = 3,459,308.62/2,613.63
  6. Step 6: Final answer
    x = 1,323.56

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1.5x scale

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.