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Finding the Fourth Proportional to 29,649.60, 40,910.40 and 17,078.40

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Solution

The fourth proportional to 29,649.60, 40,910.40 and 17,078.40 is: 23,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,649.60 : 40,910.40 = 17,078.40 : x
  2. Step 2: Convert to fraction form
    29,649.60/40,910.40 = 17,078.40/x
  3. Step 3: Cross multiply
    29,649.60x = 40,910.40 × 17,078.40
  4. Step 4: Simplify right side
    29,649.60x = 698,684,175.36
  5. Step 5: Solve for x
    x = 698,684,175.36/29,649.60
  6. Step 6: Final answer
    x = 23,564.71

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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.