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Finding the Fourth Proportional to 66,892.92, 92,313.30 and 36,681

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Solution

The fourth proportional to 66,892.92, 92,313.30 and 36,681 is: 50,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,892.92 : 92,313.30 = 36,681 : x
  2. Step 2: Convert to fraction form
    66,892.92/92,313.30 = 36,681/x
  3. Step 3: Cross multiply
    66,892.92x = 92,313.30 × 36,681
  4. Step 4: Simplify right side
    66,892.92x = 3,386,144,157.30
  5. Step 5: Solve for x
    x = 3,386,144,157.30/66,892.92
  6. Step 6: Final answer
    x = 50,620.37

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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.