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Finding the Fourth Proportional to 59,940.80, 82,712.40 and 33,084.80

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Solution

The fourth proportional to 59,940.80, 82,712.40 and 33,084.80 is: 45,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,940.80 : 82,712.40 = 33,084.80 : x
  2. Step 2: Convert to fraction form
    59,940.80/82,712.40 = 33,084.80/x
  3. Step 3: Cross multiply
    59,940.80x = 82,712.40 × 33,084.80
  4. Step 4: Simplify right side
    59,940.80x = 2,736,523,211.52
  5. Step 5: Solve for x
    x = 2,736,523,211.52/59,940.80
  6. Step 6: Final answer
    x = 45,653.77

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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.