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Finding the Fourth Proportional to 5,387,581.80, 8,085,309.30 and 3,793,258.80

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Solution

The fourth proportional to 5,387,581.80, 8,085,309.30 and 3,793,258.80 is: 5,692,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,581.80 : 8,085,309.30 = 3,793,258.80 : x
  2. Step 2: Convert to fraction form
    5,387,581.80/8,085,309.30 = 3,793,258.80/x
  3. Step 3: Cross multiply
    5,387,581.80x = 8,085,309.30 × 3,793,258.80
  4. Step 4: Simplify right side
    5,387,581.80x = 30,669,670,652,946.84
  5. Step 5: Solve for x
    x = 30,669,670,652,946.84/5,387,581.80
  6. Step 6: Final answer
    x = 5,692,659.86

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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.