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Finding the Fourth Proportional to 27,218,738.80, 38,156,622.80 and 27,218,738.80

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Solution

The fourth proportional to 27,218,738.80, 38,156,622.80 and 27,218,738.80 is: 38,156,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218,738.80 : 38,156,622.80 = 27,218,738.80 : x
  2. Step 2: Convert to fraction form
    27,218,738.80/38,156,622.80 = 27,218,738.80/x
  3. Step 3: Cross multiply
    27,218,738.80x = 38,156,622.80 × 27,218,738.80
  4. Step 4: Simplify right side
    27,218,738.80x = 1,038,575,149,483,324.62
  5. Step 5: Solve for x
    x = 1,038,575,149,483,324.62/27,218,738.80
  6. Step 6: Final answer
    x = 38,156,622.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.