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Finding the Fourth Proportional to 5,762,829.72, 7,953,183.90 and 3,185,013.72

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Solution

The fourth proportional to 5,762,829.72, 7,953,183.90 and 3,185,013.72 is: 4,395,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,762,829.72 : 7,953,183.90 = 3,185,013.72 : x
  2. Step 2: Convert to fraction form
    5,762,829.72/7,953,183.90 = 3,185,013.72/x
  3. Step 3: Cross multiply
    5,762,829.72x = 7,953,183.90 × 3,185,013.72
  4. Step 4: Simplify right side
    5,762,829.72x = 25,330,999,839,183.11
  5. Step 5: Solve for x
    x = 25,330,999,839,183.11/5,762,829.72
  6. Step 6: Final answer
    x = 4,395,583.61

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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.