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Finding the Fourth Proportional to 55,486.77, 83,251.12 and 33,315.56

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Solution

The fourth proportional to 55,486.77, 83,251.12 and 33,315.56 is: 49,985.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,486.77 : 83,251.12 = 33,315.56 : x
  2. Step 2: Convert to fraction form
    55,486.77/83,251.12 = 33,315.56/x
  3. Step 3: Cross multiply
    55,486.77x = 83,251.12 × 33,315.56
  4. Step 4: Simplify right side
    55,486.77x = 2,773,557,683.43
  5. Step 5: Solve for x
    x = 2,773,557,683.43/55,486.77
  6. Step 6: Final answer
    x = 49,985.93

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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.