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Finding the Fourth Proportional to 59,647.49, 89,475.79 and 19,650.90

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Solution

The fourth proportional to 59,647.49, 89,475.79 and 19,650.90 is: 29,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,647.49 : 89,475.79 = 19,650.90 : x
  2. Step 2: Convert to fraction form
    59,647.49/89,475.79 = 19,650.90/x
  3. Step 3: Cross multiply
    59,647.49x = 89,475.79 × 19,650.90
  4. Step 4: Simplify right side
    59,647.49x = 1,758,280,124.96
  5. Step 5: Solve for x
    x = 1,758,280,124.96/59,647.49
  6. Step 6: Final answer
    x = 29,477.86

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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.