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Finding the Fourth Proportional to 67,090.50, 92,585.15 and 36,878.47

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Solution

The fourth proportional to 67,090.50, 92,585.15 and 36,878.47 is: 50,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,090.50 : 92,585.15 = 36,878.47 : x
  2. Step 2: Convert to fraction form
    67,090.50/92,585.15 = 36,878.47/x
  3. Step 3: Cross multiply
    67,090.50x = 92,585.15 × 36,878.47
  4. Step 4: Simplify right side
    67,090.50x = 3,414,398,676.72
  5. Step 5: Solve for x
    x = 3,414,398,676.72/67,090.50
  6. Step 6: Final answer
    x = 50,892.43

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1.5x scale

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.