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Finding the Fourth Proportional to 25,927.75, 38,891.63 and 7,459.75

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Solution

The fourth proportional to 25,927.75, 38,891.63 and 7,459.75 is: 11,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.75 : 38,891.63 = 7,459.75 : x
  2. Step 2: Convert to fraction form
    25,927.75/38,891.63 = 7,459.75/x
  3. Step 3: Cross multiply
    25,927.75x = 38,891.63 × 7,459.75
  4. Step 4: Simplify right side
    25,927.75x = 290,121,836.89
  5. Step 5: Solve for x
    x = 290,121,836.89/25,927.75
  6. Step 6: Final answer
    x = 11,189.63

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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.