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Finding the Fourth Proportional to 59,770.56, 89,675.20 and 28,608

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Solution

The fourth proportional to 59,770.56, 89,675.20 and 28,608 is: 42,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,770.56 : 89,675.20 = 28,608 : x
  2. Step 2: Convert to fraction form
    59,770.56/89,675.20 = 28,608/x
  3. Step 3: Cross multiply
    59,770.56x = 89,675.20 × 28,608
  4. Step 4: Simplify right side
    59,770.56x = 2,565,428,121.60
  5. Step 5: Solve for x
    x = 2,565,428,121.60/59,770.56
  6. Step 6: Final answer
    x = 42,921.27

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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.