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Finding the Fourth Proportional to 2,403.60, 3,606.01 and 672.22

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Solution

The fourth proportional to 2,403.60, 3,606.01 and 672.22 is: 1,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.60 : 3,606.01 = 672.22 : x
  2. Step 2: Convert to fraction form
    2,403.60/3,606.01 = 672.22/x
  3. Step 3: Cross multiply
    2,403.60x = 3,606.01 × 672.22
  4. Step 4: Simplify right side
    2,403.60x = 2,424,034.87
  5. Step 5: Solve for x
    x = 2,424,034.87/2,403.60
  6. Step 6: Final answer
    x = 1,008.50

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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.