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Finding the Fourth Proportional to 62,939.84, 94,449.60 and 57,028.77

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Solution

The fourth proportional to 62,939.84, 94,449.60 and 57,028.77 is: 85,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,939.84 : 94,449.60 = 57,028.77 : x
  2. Step 2: Convert to fraction form
    62,939.84/94,449.60 = 57,028.77/x
  3. Step 3: Cross multiply
    62,939.84x = 94,449.60 × 57,028.77
  4. Step 4: Simplify right side
    62,939.84x = 5,386,344,514.99
  5. Step 5: Solve for x
    x = 5,386,344,514.99/62,939.84
  6. Step 6: Final answer
    x = 85,579.26

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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.