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Finding the Fourth Proportional to 34,842.78, 48,080.79 and 19,738.62

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Solution

The fourth proportional to 34,842.78, 48,080.79 and 19,738.62 is: 27,238.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,842.78 : 48,080.79 = 19,738.62 : x
  2. Step 2: Convert to fraction form
    34,842.78/48,080.79 = 19,738.62/x
  3. Step 3: Cross multiply
    34,842.78x = 48,080.79 × 19,738.62
  4. Step 4: Simplify right side
    34,842.78x = 949,048,443.11
  5. Step 5: Solve for x
    x = 949,048,443.11/34,842.78
  6. Step 6: Final answer
    x = 27,238.02

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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.