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Finding the Fourth Proportional to 34,668.72, 47,842.74 and 18,753.39

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Solution

The fourth proportional to 34,668.72, 47,842.74 and 18,753.39 is: 25,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,668.72 : 47,842.74 = 18,753.39 : x
  2. Step 2: Convert to fraction form
    34,668.72/47,842.74 = 18,753.39/x
  3. Step 3: Cross multiply
    34,668.72x = 47,842.74 × 18,753.39
  4. Step 4: Simplify right side
    34,668.72x = 897,213,561.89
  5. Step 5: Solve for x
    x = 897,213,561.89/34,668.72
  6. Step 6: Final answer
    x = 25,879.63

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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.