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Finding the Fourth Proportional to 42,572.82, 63,873 and 27,810.60

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Solution

The fourth proportional to 42,572.82, 63,873 and 27,810.60 is: 41,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,572.82 : 63,873 = 27,810.60 : x
  2. Step 2: Convert to fraction form
    42,572.82/63,873 = 27,810.60/x
  3. Step 3: Cross multiply
    42,572.82x = 63,873 × 27,810.60
  4. Step 4: Simplify right side
    42,572.82x = 1,776,346,453.80
  5. Step 5: Solve for x
    x = 1,776,346,453.80/42,572.82
  6. Step 6: Final answer
    x = 41,724.90

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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.