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Finding the Fourth Proportional to 60,335.68, 90,505.94 and 28,729.48

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Solution

The fourth proportional to 60,335.68, 90,505.94 and 28,729.48 is: 43,095.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,335.68 : 90,505.94 = 28,729.48 : x
  2. Step 2: Convert to fraction form
    60,335.68/90,505.94 = 28,729.48/x
  3. Step 3: Cross multiply
    60,335.68x = 90,505.94 × 28,729.48
  4. Step 4: Simplify right side
    60,335.68x = 2,600,188,593.11
  5. Step 5: Solve for x
    x = 2,600,188,593.11/60,335.68
  6. Step 6: Final answer
    x = 43,095.37

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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.