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Finding the Fourth Proportional to 5,752,491.88, 7,938,429.54 and 3,174,170.60

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Solution

The fourth proportional to 5,752,491.88, 7,938,429.54 and 3,174,170.60 is: 4,380,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752,491.88 : 7,938,429.54 = 3,174,170.60 : x
  2. Step 2: Convert to fraction form
    5,752,491.88/7,938,429.54 = 3,174,170.60/x
  3. Step 3: Cross multiply
    5,752,491.88x = 7,938,429.54 × 3,174,170.60
  4. Step 4: Simplify right side
    5,752,491.88x = 25,197,929,656,039.52
  5. Step 5: Solve for x
    x = 25,197,929,656,039.52/5,752,491.88
  6. Step 6: Final answer
    x = 4,380,350.32

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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.