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Finding the Fourth Proportional to 38,440.69, 57,670.75 and 10,738.69

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Solution

The fourth proportional to 38,440.69, 57,670.75 and 10,738.69 is: 16,110.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.69 : 57,670.75 = 10,738.69 : x
  2. Step 2: Convert to fraction form
    38,440.69/57,670.75 = 10,738.69/x
  3. Step 3: Cross multiply
    38,440.69x = 57,670.75 × 10,738.69
  4. Step 4: Simplify right side
    38,440.69x = 619,308,175.56
  5. Step 5: Solve for x
    x = 619,308,175.56/38,440.69
  6. Step 6: Final answer
    x = 16,110.75

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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.