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Finding the Fourth Proportional to 50,786.70, 70,068.68 and 29,561.46

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Solution

The fourth proportional to 50,786.70, 70,068.68 and 29,561.46 is: 40,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,786.70 : 70,068.68 = 29,561.46 : x
  2. Step 2: Convert to fraction form
    50,786.70/70,068.68 = 29,561.46/x
  3. Step 3: Cross multiply
    50,786.70x = 70,068.68 × 29,561.46
  4. Step 4: Simplify right side
    50,786.70x = 2,071,332,481.07
  5. Step 5: Solve for x
    x = 2,071,332,481.07/50,786.70
  6. Step 6: Final answer
    x = 40,784.94

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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.