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Finding the Fourth Proportional to 38,843.60, 53,603.88 and 22,076.60

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Solution

The fourth proportional to 38,843.60, 53,603.88 and 22,076.60 is: 30,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,843.60 : 53,603.88 = 22,076.60 : x
  2. Step 2: Convert to fraction form
    38,843.60/53,603.88 = 22,076.60/x
  3. Step 3: Cross multiply
    38,843.60x = 53,603.88 × 22,076.60
  4. Step 4: Simplify right side
    38,843.60x = 1,183,391,367.92
  5. Step 5: Solve for x
    x = 1,183,391,367.92/38,843.60
  6. Step 6: Final answer
    x = 30,465.54

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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.