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Finding the Fourth Proportional to 29,649.75, 40,918.87 and 16,903.25

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Solution

The fourth proportional to 29,649.75, 40,918.87 and 16,903.25 is: 23,327.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,649.75 : 40,918.87 = 16,903.25 : x
  2. Step 2: Convert to fraction form
    29,649.75/40,918.87 = 16,903.25/x
  3. Step 3: Cross multiply
    29,649.75x = 40,918.87 × 16,903.25
  4. Step 4: Simplify right side
    29,649.75x = 691,661,859.31
  5. Step 5: Solve for x
    x = 691,661,859.31/29,649.75
  6. Step 6: Final answer
    x = 23,327.75

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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.