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Finding the Fourth Proportional to 29,131.40, 40,201.46 and 16,555.40

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Solution

The fourth proportional to 29,131.40, 40,201.46 and 16,555.40 is: 22,846.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,131.40 : 40,201.46 = 16,555.40 : x
  2. Step 2: Convert to fraction form
    29,131.40/40,201.46 = 16,555.40/x
  3. Step 3: Cross multiply
    29,131.40x = 40,201.46 × 16,555.40
  4. Step 4: Simplify right side
    29,131.40x = 665,551,250.88
  5. Step 5: Solve for x
    x = 665,551,250.88/29,131.40
  6. Step 6: Final answer
    x = 22,846.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.