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Finding the Fourth Proportional to 66,667.20, 92,000.32 and 36,859.20

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Solution

The fourth proportional to 66,667.20, 92,000.32 and 36,859.20 is: 50,865.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,667.20 : 92,000.32 = 36,859.20 : x
  2. Step 2: Convert to fraction form
    66,667.20/92,000.32 = 36,859.20/x
  3. Step 3: Cross multiply
    66,667.20x = 92,000.32 × 36,859.20
  4. Step 4: Simplify right side
    66,667.20x = 3,391,058,194.94
  5. Step 5: Solve for x
    x = 3,391,058,194.94/66,667.20
  6. Step 6: Final answer
    x = 50,865.47

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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.