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Finding the Fourth Proportional to 45,235.86, 67,795.16 and 38,953.70

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Solution

The fourth proportional to 45,235.86, 67,795.16 and 38,953.70 is: 58,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,235.86 : 67,795.16 = 38,953.70 : x
  2. Step 2: Convert to fraction form
    45,235.86/67,795.16 = 38,953.70/x
  3. Step 3: Cross multiply
    45,235.86x = 67,795.16 × 38,953.70
  4. Step 4: Simplify right side
    45,235.86x = 2,640,872,324.09
  5. Step 5: Solve for x
    x = 2,640,872,324.09/45,235.86
  6. Step 6: Final answer
    x = 58,380.06

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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.