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Finding the Fourth Proportional to 57,463.83, 86,220.54 and 21,935.82

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Solution

The fourth proportional to 57,463.83, 86,220.54 and 21,935.82 is: 32,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,463.83 : 86,220.54 = 21,935.82 : x
  2. Step 2: Convert to fraction form
    57,463.83/86,220.54 = 21,935.82/x
  3. Step 3: Cross multiply
    57,463.83x = 86,220.54 × 21,935.82
  4. Step 4: Simplify right side
    57,463.83x = 1,891,318,113.86
  5. Step 5: Solve for x
    x = 1,891,318,113.86/57,463.83
  6. Step 6: Final answer
    x = 32,913.19

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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.