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Finding the Fourth Proportional to 67,021.91, 92,490.87 and 36,807.86

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Solution

The fourth proportional to 67,021.91, 92,490.87 and 36,807.86 is: 50,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,021.91 : 92,490.87 = 36,807.86 : x
  2. Step 2: Convert to fraction form
    67,021.91/92,490.87 = 36,807.86/x
  3. Step 3: Cross multiply
    67,021.91x = 92,490.87 × 36,807.86
  4. Step 4: Simplify right side
    67,021.91x = 3,404,390,532.00
  5. Step 5: Solve for x
    x = 3,404,390,532.00/67,021.91
  6. Step 6: Final answer
    x = 50,795.19

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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.