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Finding the Fourth Proportional to 5,881,203.70, 8,821,805.55 and 5,172,615.70

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Solution

The fourth proportional to 5,881,203.70, 8,821,805.55 and 5,172,615.70 is: 7,758,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881,203.70 : 8,821,805.55 = 5,172,615.70 : x
  2. Step 2: Convert to fraction form
    5,881,203.70/8,821,805.55 = 5,172,615.70/x
  3. Step 3: Cross multiply
    5,881,203.70x = 8,821,805.55 × 5,172,615.70
  4. Step 4: Simplify right side
    5,881,203.70x = 45,631,809,890,277.14
  5. Step 5: Solve for x
    x = 45,631,809,890,277.14/5,881,203.70
  6. Step 6: Final answer
    x = 7,758,923.55

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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.