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Finding the Fourth Proportional to 57,396.64, 86,101.24 and 19,473.29

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Solution

The fourth proportional to 57,396.64, 86,101.24 and 19,473.29 is: 29,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,396.64 : 86,101.24 = 19,473.29 : x
  2. Step 2: Convert to fraction form
    57,396.64/86,101.24 = 19,473.29/x
  3. Step 3: Cross multiply
    57,396.64x = 86,101.24 × 19,473.29
  4. Step 4: Simplify right side
    57,396.64x = 1,676,674,415.88
  5. Step 5: Solve for x
    x = 1,676,674,415.88/57,396.64
  6. Step 6: Final answer
    x = 29,212.07

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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.