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Finding the Fourth Proportional to 66,483.10, 99,743.41 and 27,068.50

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Solution

The fourth proportional to 66,483.10, 99,743.41 and 27,068.50 is: 40,610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483.10 : 99,743.41 = 27,068.50 : x
  2. Step 2: Convert to fraction form
    66,483.10/99,743.41 = 27,068.50/x
  3. Step 3: Cross multiply
    66,483.10x = 99,743.41 × 27,068.50
  4. Step 4: Simplify right side
    66,483.10x = 2,699,904,493.59
  5. Step 5: Solve for x
    x = 2,699,904,493.59/66,483.10
  6. Step 6: Final answer
    x = 40,610.39

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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.