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Finding the Fourth Proportional to 30,649.77, 45,951.28 and 15,849.25

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Solution

The fourth proportional to 30,649.77, 45,951.28 and 15,849.25 is: 23,761.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,649.77 : 45,951.28 = 15,849.25 : x
  2. Step 2: Convert to fraction form
    30,649.77/45,951.28 = 15,849.25/x
  3. Step 3: Cross multiply
    30,649.77x = 45,951.28 × 15,849.25
  4. Step 4: Simplify right side
    30,649.77x = 728,293,324.54
  5. Step 5: Solve for x
    x = 728,293,324.54/30,649.77
  6. Step 6: Final answer
    x = 23,761.79

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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.