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Finding the Fourth Proportional to 3,895,232.98, 5,375,699.82 and 2,152,864.89

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Solution

The fourth proportional to 3,895,232.98, 5,375,699.82 and 2,152,864.89 is: 2,971,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895,232.98 : 5,375,699.82 = 2,152,864.89 : x
  2. Step 2: Convert to fraction form
    3,895,232.98/5,375,699.82 = 2,152,864.89/x
  3. Step 3: Cross multiply
    3,895,232.98x = 5,375,699.82 × 2,152,864.89
  4. Step 4: Simplify right side
    3,895,232.98x = 11,573,155,401,657.32
  5. Step 5: Solve for x
    x = 11,573,155,401,657.32/3,895,232.98
  6. Step 6: Final answer
    x = 2,971,107.37

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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.