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Finding the Fourth Proportional to 48,540.56, 66,975.54 and 28,396.67

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Solution

The fourth proportional to 48,540.56, 66,975.54 and 28,396.67 is: 39,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.56 : 66,975.54 = 28,396.67 : x
  2. Step 2: Convert to fraction form
    48,540.56/66,975.54 = 28,396.67/x
  3. Step 3: Cross multiply
    48,540.56x = 66,975.54 × 28,396.67
  4. Step 4: Simplify right side
    48,540.56x = 1,901,882,307.45
  5. Step 5: Solve for x
    x = 1,901,882,307.45/48,540.56
  6. Step 6: Final answer
    x = 39,181.30

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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.