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Finding the Fourth Proportional to 8,274,946.80, 12,412,420.20 and 4,023,418.80

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Solution

The fourth proportional to 8,274,946.80, 12,412,420.20 and 4,023,418.80 is: 6,035,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274,946.80 : 12,412,420.20 = 4,023,418.80 : x
  2. Step 2: Convert to fraction form
    8,274,946.80/12,412,420.20 = 4,023,418.80/x
  3. Step 3: Cross multiply
    8,274,946.80x = 12,412,420.20 × 4,023,418.80
  4. Step 4: Simplify right side
    8,274,946.80x = 49,940,364,786,179.76
  5. Step 5: Solve for x
    x = 49,940,364,786,179.76/8,274,946.80
  6. Step 6: Final answer
    x = 6,035,128.20

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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.