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Finding the Fourth Proportional to 67,820, 93,591.60 and 41,324

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Solution

The fourth proportional to 67,820, 93,591.60 and 41,324 is: 57,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,820 : 93,591.60 = 41,324 : x
  2. Step 2: Convert to fraction form
    67,820/93,591.60 = 41,324/x
  3. Step 3: Cross multiply
    67,820x = 93,591.60 × 41,324
  4. Step 4: Simplify right side
    67,820x = 3,867,579,278.40
  5. Step 5: Solve for x
    x = 3,867,579,278.40/67,820
  6. Step 6: Final answer
    x = 57,027.12

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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.