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Finding the Fourth Proportional to 66,496.50, 99,763.50 and 27,081.90

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Solution

The fourth proportional to 66,496.50, 99,763.50 and 27,081.90 is: 40,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.50 : 99,763.50 = 27,081.90 : x
  2. Step 2: Convert to fraction form
    66,496.50/99,763.50 = 27,081.90/x
  3. Step 3: Cross multiply
    66,496.50x = 99,763.50 × 27,081.90
  4. Step 4: Simplify right side
    66,496.50x = 2,701,785,130.65
  5. Step 5: Solve for x
    x = 2,701,785,130.65/66,496.50
  6. Step 6: Final answer
    x = 40,630.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.