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Finding the Fourth Proportional to 57,356.51, 86,019.72 and 25,748.89

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Solution

The fourth proportional to 57,356.51, 86,019.72 and 25,748.89 is: 38,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,356.51 : 86,019.72 = 25,748.89 : x
  2. Step 2: Convert to fraction form
    57,356.51/86,019.72 = 25,748.89/x
  3. Step 3: Cross multiply
    57,356.51x = 86,019.72 × 25,748.89
  4. Step 4: Simplify right side
    57,356.51x = 2,214,912,141.34
  5. Step 5: Solve for x
    x = 2,214,912,141.34/57,356.51
  6. Step 6: Final answer
    x = 38,616.58

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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.