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Finding the Fourth Proportional to 79,798.84, 119,716.89 and 27,208.78

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Solution

The fourth proportional to 79,798.84, 119,716.89 and 27,208.78 is: 40,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.84 : 119,716.89 = 27,208.78 : x
  2. Step 2: Convert to fraction form
    79,798.84/119,716.89 = 27,208.78/x
  3. Step 3: Cross multiply
    79,798.84x = 119,716.89 × 27,208.78
  4. Step 4: Simplify right side
    79,798.84x = 3,257,350,522.29
  5. Step 5: Solve for x
    x = 3,257,350,522.29/79,798.84
  6. Step 6: Final answer
    x = 40,819.52

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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.