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Finding the Fourth Proportional to 39,872.57, 55,022.01 and 22,873.30

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Solution

The fourth proportional to 39,872.57, 55,022.01 and 22,873.30 is: 31,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.57 : 55,022.01 = 22,873.30 : x
  2. Step 2: Convert to fraction form
    39,872.57/55,022.01 = 22,873.30/x
  3. Step 3: Cross multiply
    39,872.57x = 55,022.01 × 22,873.30
  4. Step 4: Simplify right side
    39,872.57x = 1,258,534,941.33
  5. Step 5: Solve for x
    x = 1,258,534,941.33/39,872.57
  6. Step 6: Final answer
    x = 31,563.93

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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.