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Finding the Fourth Proportional to 67,720, 93,452.10 and 37,503.55

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Solution

The fourth proportional to 67,720, 93,452.10 and 37,503.55 is: 51,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,720 : 93,452.10 = 37,503.55 : x
  2. Step 2: Convert to fraction form
    67,720/93,452.10 = 37,503.55/x
  3. Step 3: Cross multiply
    67,720x = 93,452.10 × 37,503.55
  4. Step 4: Simplify right side
    67,720x = 3,504,785,504.96
  5. Step 5: Solve for x
    x = 3,504,785,504.96/67,720
  6. Step 6: Final answer
    x = 51,754.07

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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.