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Finding the Fourth Proportional to 29,793.60, 41,111.20 and 18,465.60

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Solution

The fourth proportional to 29,793.60, 41,111.20 and 18,465.60 is: 25,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,793.60 : 41,111.20 = 18,465.60 : x
  2. Step 2: Convert to fraction form
    29,793.60/41,111.20 = 18,465.60/x
  3. Step 3: Cross multiply
    29,793.60x = 41,111.20 × 18,465.60
  4. Step 4: Simplify right side
    29,793.60x = 759,142,974.72
  5. Step 5: Solve for x
    x = 759,142,974.72/29,793.60
  6. Step 6: Final answer
    x = 25,480.07

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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.