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Finding the Fourth Proportional to 50,890.68, 70,231.86 and 29,668.68

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Solution

The fourth proportional to 50,890.68, 70,231.86 and 29,668.68 is: 40,944.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,890.68 : 70,231.86 = 29,668.68 : x
  2. Step 2: Convert to fraction form
    50,890.68/70,231.86 = 29,668.68/x
  3. Step 3: Cross multiply
    50,890.68x = 70,231.86 × 29,668.68
  4. Step 4: Simplify right side
    50,890.68x = 2,083,686,580.14
  5. Step 5: Solve for x
    x = 2,083,686,580.14/50,890.68
  6. Step 6: Final answer
    x = 40,944.37

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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.