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Finding the Fourth Proportional to 30,472.67, 45,710.01 and 10,481.96

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Solution

The fourth proportional to 30,472.67, 45,710.01 and 10,481.96 is: 15,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.67 : 45,710.01 = 10,481.96 : x
  2. Step 2: Convert to fraction form
    30,472.67/45,710.01 = 10,481.96/x
  3. Step 3: Cross multiply
    30,472.67x = 45,710.01 × 10,481.96
  4. Step 4: Simplify right side
    30,472.67x = 479,130,496.42
  5. Step 5: Solve for x
    x = 479,130,496.42/30,472.67
  6. Step 6: Final answer
    x = 15,723.29

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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.