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Finding the Fourth Proportional to 57,635.76, 86,378.64 and 29,532

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Solution

The fourth proportional to 57,635.76, 86,378.64 and 29,532 is: 44,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,635.76 : 86,378.64 = 29,532 : x
  2. Step 2: Convert to fraction form
    57,635.76/86,378.64 = 29,532/x
  3. Step 3: Cross multiply
    57,635.76x = 86,378.64 × 29,532
  4. Step 4: Simplify right side
    57,635.76x = 2,550,933,996.48
  5. Step 5: Solve for x
    x = 2,550,933,996.48/57,635.76
  6. Step 6: Final answer
    x = 44,259.57

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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.