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Finding the Fourth Proportional to 59,486.94, 89,227.85 and 20,043.90

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Solution

The fourth proportional to 59,486.94, 89,227.85 and 20,043.90 is: 30,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,486.94 : 89,227.85 = 20,043.90 : x
  2. Step 2: Convert to fraction form
    59,486.94/89,227.85 = 20,043.90/x
  3. Step 3: Cross multiply
    59,486.94x = 89,227.85 × 20,043.90
  4. Step 4: Simplify right side
    59,486.94x = 1,788,474,002.40
  5. Step 5: Solve for x
    x = 1,788,474,002.40/59,486.94
  6. Step 6: Final answer
    x = 30,064.99

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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.