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Finding the Fourth Proportional to 55,093.78, 76,029.06 and 29,943.28

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Solution

The fourth proportional to 55,093.78, 76,029.06 and 29,943.28 is: 41,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,093.78 : 76,029.06 = 29,943.28 : x
  2. Step 2: Convert to fraction form
    55,093.78/76,029.06 = 29,943.28/x
  3. Step 3: Cross multiply
    55,093.78x = 76,029.06 × 29,943.28
  4. Step 4: Simplify right side
    55,093.78x = 2,276,559,431.72
  5. Step 5: Solve for x
    x = 2,276,559,431.72/55,093.78
  6. Step 6: Final answer
    x = 41,321.53

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1.5x scale

Why These Related Problems?

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