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Finding the Fourth Proportional to 59,763.15, 89,644.79 and 15,390

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Solution

The fourth proportional to 59,763.15, 89,644.79 and 15,390 is: 23,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,763.15 : 89,644.79 = 15,390 : x
  2. Step 2: Convert to fraction form
    59,763.15/89,644.79 = 15,390/x
  3. Step 3: Cross multiply
    59,763.15x = 89,644.79 × 15,390
  4. Step 4: Simplify right side
    59,763.15x = 1,379,633,241.15
  5. Step 5: Solve for x
    x = 1,379,633,241.15/59,763.15
  6. Step 6: Final answer
    x = 23,085.02

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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.