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Finding the Fourth Proportional to 55,671.68, 83,375.04 and 30,673.28

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Solution

The fourth proportional to 55,671.68, 83,375.04 and 30,673.28 is: 45,936.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,671.68 : 83,375.04 = 30,673.28 : x
  2. Step 2: Convert to fraction form
    55,671.68/83,375.04 = 30,673.28/x
  3. Step 3: Cross multiply
    55,671.68x = 83,375.04 × 30,673.28
  4. Step 4: Simplify right side
    55,671.68x = 2,557,385,946.93
  5. Step 5: Solve for x
    x = 2,557,385,946.93/55,671.68
  6. Step 6: Final answer
    x = 45,936.93

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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.