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Finding the Fourth Proportional to 27,648,267.80, 41,472,401.70 and 20,929,803.80

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Solution

The fourth proportional to 27,648,267.80, 41,472,401.70 and 20,929,803.80 is: 31,394,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648,267.80 : 41,472,401.70 = 20,929,803.80 : x
  2. Step 2: Convert to fraction form
    27,648,267.80/41,472,401.70 = 20,929,803.80/x
  3. Step 3: Cross multiply
    27,648,267.80x = 41,472,401.70 × 20,929,803.80
  4. Step 4: Simplify right side
    27,648,267.80x = 868,009,230,695,786.50
  5. Step 5: Solve for x
    x = 868,009,230,695,786.50/27,648,267.80
  6. Step 6: Final answer
    x = 31,394,705.70

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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.