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Finding the Fourth Proportional to 25,954.88, 38,938.82 and 7,486.88

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Solution

The fourth proportional to 25,954.88, 38,938.82 and 7,486.88 is: 11,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,954.88 : 38,938.82 = 7,486.88 : x
  2. Step 2: Convert to fraction form
    25,954.88/38,938.82 = 7,486.88/x
  3. Step 3: Cross multiply
    25,954.88x = 38,938.82 × 7,486.88
  4. Step 4: Simplify right side
    25,954.88x = 291,530,040.55
  5. Step 5: Solve for x
    x = 291,530,040.55/25,954.88
  6. Step 6: Final answer
    x = 11,232.19

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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.