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Finding the Fourth Proportional to 66,538.98, 99,851.28 and 26,551.12

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Solution

The fourth proportional to 66,538.98, 99,851.28 and 26,551.12 is: 39,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.98 : 99,851.28 = 26,551.12 : x
  2. Step 2: Convert to fraction form
    66,538.98/99,851.28 = 26,551.12/x
  3. Step 3: Cross multiply
    66,538.98x = 99,851.28 × 26,551.12
  4. Step 4: Simplify right side
    66,538.98x = 2,651,163,317.43
  5. Step 5: Solve for x
    x = 2,651,163,317.43/66,538.98
  6. Step 6: Final answer
    x = 39,843.76

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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.