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Finding the Fourth Proportional to 56,383.59, 84,582.29 and 18,431.94

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Solution

The fourth proportional to 56,383.59, 84,582.29 and 18,431.94 is: 27,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,383.59 : 84,582.29 = 18,431.94 : x
  2. Step 2: Convert to fraction form
    56,383.59/84,582.29 = 18,431.94/x
  3. Step 3: Cross multiply
    56,383.59x = 84,582.29 × 18,431.94
  4. Step 4: Simplify right side
    56,383.59x = 1,559,015,694.34
  5. Step 5: Solve for x
    x = 1,559,015,694.34/56,383.59
  6. Step 6: Final answer
    x = 27,650.17

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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.