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Finding the Fourth Proportional to 5,755,628.72, 7,942,559.48 and 3,177,254.13

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Solution

The fourth proportional to 5,755,628.72, 7,942,559.48 and 3,177,254.13 is: 4,384,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755,628.72 : 7,942,559.48 = 3,177,254.13 : x
  2. Step 2: Convert to fraction form
    5,755,628.72/7,942,559.48 = 3,177,254.13/x
  3. Step 3: Cross multiply
    5,755,628.72x = 7,942,559.48 × 3,177,254.13
  4. Step 4: Simplify right side
    5,755,628.72x = 25,235,529,894,714.38
  5. Step 5: Solve for x
    x = 25,235,529,894,714.38/5,755,628.72
  6. Step 6: Final answer
    x = 4,384,495.79

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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.