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Finding the Fourth Proportional to 39,844.35, 54,978.84 and 22,845.33

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Solution

The fourth proportional to 39,844.35, 54,978.84 and 22,845.33 is: 31,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.35 : 54,978.84 = 22,845.33 : x
  2. Step 2: Convert to fraction form
    39,844.35/54,978.84 = 22,845.33/x
  3. Step 3: Cross multiply
    39,844.35x = 54,978.84 × 22,845.33
  4. Step 4: Simplify right side
    39,844.35x = 1,256,009,742.82
  5. Step 5: Solve for x
    x = 1,256,009,742.82/39,844.35
  6. Step 6: Final answer
    x = 31,522.91

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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.