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Finding the Fourth Proportional to 82,922.60, 124,383.90 and 20,593.10

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Solution

The fourth proportional to 82,922.60, 124,383.90 and 20,593.10 is: 30,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,922.60 : 124,383.90 = 20,593.10 : x
  2. Step 2: Convert to fraction form
    82,922.60/124,383.90 = 20,593.10/x
  3. Step 3: Cross multiply
    82,922.60x = 124,383.90 × 20,593.10
  4. Step 4: Simplify right side
    82,922.60x = 2,561,450,091.09
  5. Step 5: Solve for x
    x = 2,561,450,091.09/82,922.60
  6. Step 6: Final answer
    x = 30,889.65

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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.