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Finding the Fourth Proportional to 4,672.79, 7,010.45 and 1,553.30

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Solution

The fourth proportional to 4,672.79, 7,010.45 and 1,553.30 is: 2,330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.79 : 7,010.45 = 1,553.30 : x
  2. Step 2: Convert to fraction form
    4,672.79/7,010.45 = 1,553.30/x
  3. Step 3: Cross multiply
    4,672.79x = 7,010.45 × 1,553.30
  4. Step 4: Simplify right side
    4,672.79x = 10,889,324.22
  5. Step 5: Solve for x
    x = 10,889,324.22/4,672.79
  6. Step 6: Final answer
    x = 2,330.37

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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.