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Finding the Fourth Proportional to 59,620.84, 89,425.79 and 20,173.43

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Solution

The fourth proportional to 59,620.84, 89,425.79 and 20,173.43 is: 30,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,620.84 : 89,425.79 = 20,173.43 : x
  2. Step 2: Convert to fraction form
    59,620.84/89,425.79 = 20,173.43/x
  3. Step 3: Cross multiply
    59,620.84x = 89,425.79 × 20,173.43
  4. Step 4: Simplify right side
    59,620.84x = 1,804,024,813.89
  5. Step 5: Solve for x
    x = 1,804,024,813.89/59,620.84
  6. Step 6: Final answer
    x = 30,258.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.