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Finding the Fourth Proportional to 66,908.65, 92,335.20 and 36,692.16

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Solution

The fourth proportional to 66,908.65, 92,335.20 and 36,692.16 is: 50,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,908.65 : 92,335.20 = 36,692.16 : x
  2. Step 2: Convert to fraction form
    66,908.65/92,335.20 = 36,692.16/x
  3. Step 3: Cross multiply
    66,908.65x = 92,335.20 × 36,692.16
  4. Step 4: Simplify right side
    66,908.65x = 3,387,978,253.06
  5. Step 5: Solve for x
    x = 3,387,978,253.06/66,908.65
  6. Step 6: Final answer
    x = 50,635.88

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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.