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Finding the Fourth Proportional to 57,383.66, 86,080.45 and 15,830.66

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Solution

The fourth proportional to 57,383.66, 86,080.45 and 15,830.66 is: 23,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,383.66 : 86,080.45 = 15,830.66 : x
  2. Step 2: Convert to fraction form
    57,383.66/86,080.45 = 15,830.66/x
  3. Step 3: Cross multiply
    57,383.66x = 86,080.45 × 15,830.66
  4. Step 4: Simplify right side
    57,383.66x = 1,362,709,954.43
  5. Step 5: Solve for x
    x = 1,362,709,954.43/57,383.66
  6. Step 6: Final answer
    x = 23,747.35

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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.