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Finding the Fourth Proportional to 68,667.37, 94,756.38 and 38,038.39

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Solution

The fourth proportional to 68,667.37, 94,756.38 and 38,038.39 is: 52,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,667.37 : 94,756.38 = 38,038.39 : x
  2. Step 2: Convert to fraction form
    68,667.37/94,756.38 = 38,038.39/x
  3. Step 3: Cross multiply
    68,667.37x = 94,756.38 × 38,038.39
  4. Step 4: Simplify right side
    68,667.37x = 3,604,380,504.86
  5. Step 5: Solve for x
    x = 3,604,380,504.86/68,667.37
  6. Step 6: Final answer
    x = 52,490.44

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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.