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Finding the Fourth Proportional to 67,305.12, 92,879.87 and 36,678.48

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Solution

The fourth proportional to 67,305.12, 92,879.87 and 36,678.48 is: 50,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,305.12 : 92,879.87 = 36,678.48 : x
  2. Step 2: Convert to fraction form
    67,305.12/92,879.87 = 36,678.48/x
  3. Step 3: Cross multiply
    67,305.12x = 92,879.87 × 36,678.48
  4. Step 4: Simplify right side
    67,305.12x = 3,406,692,270.81
  5. Step 5: Solve for x
    x = 3,406,692,270.81/67,305.12
  6. Step 6: Final answer
    x = 50,615.65

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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.