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Finding the Fourth Proportional to 57,503.88, 86,255.10 and 20,063.88

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Solution

The fourth proportional to 57,503.88, 86,255.10 and 20,063.88 is: 30,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,503.88 : 86,255.10 = 20,063.88 : x
  2. Step 2: Convert to fraction form
    57,503.88/86,255.10 = 20,063.88/x
  3. Step 3: Cross multiply
    57,503.88x = 86,255.10 × 20,063.88
  4. Step 4: Simplify right side
    57,503.88x = 1,730,611,975.79
  5. Step 5: Solve for x
    x = 1,730,611,975.79/57,503.88
  6. Step 6: Final answer
    x = 30,095.57

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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.