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Finding the Fourth Proportional to 60,728.36, 83,805.30 and 33,872.58

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Solution

The fourth proportional to 60,728.36, 83,805.30 and 33,872.58 is: 46,744.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.36 : 83,805.30 = 33,872.58 : x
  2. Step 2: Convert to fraction form
    60,728.36/83,805.30 = 33,872.58/x
  3. Step 3: Cross multiply
    60,728.36x = 83,805.30 × 33,872.58
  4. Step 4: Simplify right side
    60,728.36x = 2,838,701,728.67
  5. Step 5: Solve for x
    x = 2,838,701,728.67/60,728.36
  6. Step 6: Final answer
    x = 46,744.26

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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.