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Finding the Fourth Proportional to 66,670.98, 92,008.81 and 36,454.50

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Solution

The fourth proportional to 66,670.98, 92,008.81 and 36,454.50 is: 50,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,670.98 : 92,008.81 = 36,454.50 : x
  2. Step 2: Convert to fraction form
    66,670.98/92,008.81 = 36,454.50/x
  3. Step 3: Cross multiply
    66,670.98x = 92,008.81 × 36,454.50
  4. Step 4: Simplify right side
    66,670.98x = 3,354,135,164.15
  5. Step 5: Solve for x
    x = 3,354,135,164.15/66,670.98
  6. Step 6: Final answer
    x = 50,308.77

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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.