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Finding the Fourth Proportional to 19,649.76, 29,474.97 and 10,940.04

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Solution

The fourth proportional to 19,649.76, 29,474.97 and 10,940.04 is: 16,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.76 : 29,474.97 = 10,940.04 : x
  2. Step 2: Convert to fraction form
    19,649.76/29,474.97 = 10,940.04/x
  3. Step 3: Cross multiply
    19,649.76x = 29,474.97 × 10,940.04
  4. Step 4: Simplify right side
    19,649.76x = 322,457,350.80
  5. Step 5: Solve for x
    x = 322,457,350.80/19,649.76
  6. Step 6: Final answer
    x = 16,410.24

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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.