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Finding the Fourth Proportional to 55,240.66, 82,871.82 and 21,954.52

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Solution

The fourth proportional to 55,240.66, 82,871.82 and 21,954.52 is: 32,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,240.66 : 82,871.82 = 21,954.52 : x
  2. Step 2: Convert to fraction form
    55,240.66/82,871.82 = 21,954.52/x
  3. Step 3: Cross multiply
    55,240.66x = 82,871.82 × 21,954.52
  4. Step 4: Simplify right side
    55,240.66x = 1,819,411,029.63
  5. Step 5: Solve for x
    x = 1,819,411,029.63/55,240.66
  6. Step 6: Final answer
    x = 32,936.08

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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.