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Finding the Fourth Proportional to 26,433.25, 39,649.88 and 7,965.25

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Solution

The fourth proportional to 26,433.25, 39,649.88 and 7,965.25 is: 11,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,433.25 : 39,649.88 = 7,965.25 : x
  2. Step 2: Convert to fraction form
    26,433.25/39,649.88 = 7,965.25/x
  3. Step 3: Cross multiply
    26,433.25x = 39,649.88 × 7,965.25
  4. Step 4: Simplify right side
    26,433.25x = 315,821,166.84
  5. Step 5: Solve for x
    x = 315,821,166.84/26,433.25
  6. Step 6: Final answer
    x = 11,947.88

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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.