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Finding the Fourth Proportional to 53,912.60, 80,858.10 and 25,832.60

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Solution

The fourth proportional to 53,912.60, 80,858.10 and 25,832.60 is: 38,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.60 : 80,858.10 = 25,832.60 : x
  2. Step 2: Convert to fraction form
    53,912.60/80,858.10 = 25,832.60/x
  3. Step 3: Cross multiply
    53,912.60x = 80,858.10 × 25,832.60
  4. Step 4: Simplify right side
    53,912.60x = 2,088,774,954.06
  5. Step 5: Solve for x
    x = 2,088,774,954.06/53,912.60
  6. Step 6: Final answer
    x = 38,743.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.