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Finding the Fourth Proportional to 19,649.92, 29,472.96 and 5,610.88

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Solution

The fourth proportional to 19,649.92, 29,472.96 and 5,610.88 is: 8,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.92 : 29,472.96 = 5,610.88 : x
  2. Step 2: Convert to fraction form
    19,649.92/29,472.96 = 5,610.88/x
  3. Step 3: Cross multiply
    19,649.92x = 29,472.96 × 5,610.88
  4. Step 4: Simplify right side
    19,649.92x = 165,369,241.80
  5. Step 5: Solve for x
    x = 165,369,241.80/19,649.92
  6. Step 6: Final answer
    x = 8,415.77

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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.