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Finding the Fourth Proportional to 56,887.92, 78,505.20 and 33,028.56

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Solution

The fourth proportional to 56,887.92, 78,505.20 and 33,028.56 is: 45,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,887.92 : 78,505.20 = 33,028.56 : x
  2. Step 2: Convert to fraction form
    56,887.92/78,505.20 = 33,028.56/x
  3. Step 3: Cross multiply
    56,887.92x = 78,505.20 × 33,028.56
  4. Step 4: Simplify right side
    56,887.92x = 2,592,913,708.51
  5. Step 5: Solve for x
    x = 2,592,913,708.51/56,887.92
  6. Step 6: Final answer
    x = 45,579.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.