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Finding the Fourth Proportional to 82,486.12, 123,736.12 and 26,334.24

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Solution

The fourth proportional to 82,486.12, 123,736.12 and 26,334.24 is: 39,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,486.12 : 123,736.12 = 26,334.24 : x
  2. Step 2: Convert to fraction form
    82,486.12/123,736.12 = 26,334.24/x
  3. Step 3: Cross multiply
    82,486.12x = 123,736.12 × 26,334.24
  4. Step 4: Simplify right side
    82,486.12x = 3,258,496,680.75
  5. Step 5: Solve for x
    x = 3,258,496,680.75/82,486.12
  6. Step 6: Final answer
    x = 39,503.58

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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.