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Finding the Fourth Proportional to 55,797.69, 76,996.83 and 31,591.70

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Solution

The fourth proportional to 55,797.69, 76,996.83 and 31,591.70 is: 43,594.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,797.69 : 76,996.83 = 31,591.70 : x
  2. Step 2: Convert to fraction form
    55,797.69/76,996.83 = 31,591.70/x
  3. Step 3: Cross multiply
    55,797.69x = 76,996.83 × 31,591.70
  4. Step 4: Simplify right side
    55,797.69x = 2,432,460,382.28
  5. Step 5: Solve for x
    x = 2,432,460,382.28/55,797.69
  6. Step 6: Final answer
    x = 43,594.29

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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.