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Finding the Fourth Proportional to 57,849.36, 86,743.32 and 26,658

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Solution

The fourth proportional to 57,849.36, 86,743.32 and 26,658 is: 39,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,849.36 : 86,743.32 = 26,658 : x
  2. Step 2: Convert to fraction form
    57,849.36/86,743.32 = 26,658/x
  3. Step 3: Cross multiply
    57,849.36x = 86,743.32 × 26,658
  4. Step 4: Simplify right side
    57,849.36x = 2,312,403,424.56
  5. Step 5: Solve for x
    x = 2,312,403,424.56/57,849.36
  6. Step 6: Final answer
    x = 39,972.84

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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.