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Finding the Fourth Proportional to 66,866.72, 92,278.43 and 36,652.03

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Solution

The fourth proportional to 66,866.72, 92,278.43 and 36,652.03 is: 50,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,866.72 : 92,278.43 = 36,652.03 : x
  2. Step 2: Convert to fraction form
    66,866.72/92,278.43 = 36,652.03/x
  3. Step 3: Cross multiply
    66,866.72x = 92,278.43 × 36,652.03
  4. Step 4: Simplify right side
    66,866.72x = 3,382,191,508.20
  5. Step 5: Solve for x
    x = 3,382,191,508.20/66,866.72
  6. Step 6: Final answer
    x = 50,581.09

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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.