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Finding the Fourth Proportional to 52,321.73, 72,203.13 and 28,449

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Solution

The fourth proportional to 52,321.73, 72,203.13 and 28,449 is: 39,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,321.73 : 72,203.13 = 28,449 : x
  2. Step 2: Convert to fraction form
    52,321.73/72,203.13 = 28,449/x
  3. Step 3: Cross multiply
    52,321.73x = 72,203.13 × 28,449
  4. Step 4: Simplify right side
    52,321.73x = 2,054,106,845.37
  5. Step 5: Solve for x
    x = 2,054,106,845.37/52,321.73
  6. Step 6: Final answer
    x = 39,259.16

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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.