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Finding the Fourth Proportional to 2,403.63, 3,606.05 and 672.25

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Solution

The fourth proportional to 2,403.63, 3,606.05 and 672.25 is: 1,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.63 : 3,606.05 = 672.25 : x
  2. Step 2: Convert to fraction form
    2,403.63/3,606.05 = 672.25/x
  3. Step 3: Cross multiply
    2,403.63x = 3,606.05 × 672.25
  4. Step 4: Simplify right side
    2,403.63x = 2,424,167.11
  5. Step 5: Solve for x
    x = 2,424,167.11/2,403.63
  6. Step 6: Final answer
    x = 1,008.54

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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.