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Finding the Fourth Proportional to 65,608.56, 90,539.76 and 35,800.56

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Solution

The fourth proportional to 65,608.56, 90,539.76 and 35,800.56 is: 49,404.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.56 : 90,539.76 = 35,800.56 : x
  2. Step 2: Convert to fraction form
    65,608.56/90,539.76 = 35,800.56/x
  3. Step 3: Cross multiply
    65,608.56x = 90,539.76 × 35,800.56
  4. Step 4: Simplify right side
    65,608.56x = 3,241,374,110.27
  5. Step 5: Solve for x
    x = 3,241,374,110.27/65,608.56
  6. Step 6: Final answer
    x = 49,404.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.