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Finding the Fourth Proportional to 66,983.30, 92,431.88 and 36,763.82

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Solution

The fourth proportional to 66,983.30, 92,431.88 and 36,763.82 is: 50,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,983.30 : 92,431.88 = 36,763.82 : x
  2. Step 2: Convert to fraction form
    66,983.30/92,431.88 = 36,763.82/x
  3. Step 3: Cross multiply
    66,983.30x = 92,431.88 × 36,763.82
  4. Step 4: Simplify right side
    66,983.30x = 3,398,149,045.84
  5. Step 5: Solve for x
    x = 3,398,149,045.84/66,983.30
  6. Step 6: Final answer
    x = 50,731.29

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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.