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Finding the Fourth Proportional to 66,467.80, 99,661.56 and 26,492.95

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Solution

The fourth proportional to 66,467.80, 99,661.56 and 26,492.95 is: 39,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.80 : 99,661.56 = 26,492.95 : x
  2. Step 2: Convert to fraction form
    66,467.80/99,661.56 = 26,492.95/x
  3. Step 3: Cross multiply
    66,467.80x = 99,661.56 × 26,492.95
  4. Step 4: Simplify right side
    66,467.80x = 2,640,328,726.00
  5. Step 5: Solve for x
    x = 2,640,328,726.00/66,467.80
  6. Step 6: Final answer
    x = 39,723.43

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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.