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Finding the Fourth Proportional to 39,299, 54,238.11 and 25,181.92

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Solution

The fourth proportional to 39,299, 54,238.11 and 25,181.92 is: 34,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,299 : 54,238.11 = 25,181.92 : x
  2. Step 2: Convert to fraction form
    39,299/54,238.11 = 25,181.92/x
  3. Step 3: Cross multiply
    39,299x = 54,238.11 × 25,181.92
  4. Step 4: Simplify right side
    39,299x = 1,365,819,746.97
  5. Step 5: Solve for x
    x = 1,365,819,746.97/39,299
  6. Step 6: Final answer
    x = 34,754.57

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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.