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Finding the Fourth Proportional to 57,619.82, 86,428.87 and 35,137.10

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Solution

The fourth proportional to 57,619.82, 86,428.87 and 35,137.10 is: 52,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,619.82 : 86,428.87 = 35,137.10 : x
  2. Step 2: Convert to fraction form
    57,619.82/86,428.87 = 35,137.10/x
  3. Step 3: Cross multiply
    57,619.82x = 86,428.87 × 35,137.10
  4. Step 4: Simplify right side
    57,619.82x = 3,036,859,672.39
  5. Step 5: Solve for x
    x = 3,036,859,672.39/57,619.82
  6. Step 6: Final answer
    x = 52,705.13

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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.