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Finding the Fourth Proportional to 55,505.66, 83,285.82 and 25,919.19

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Solution

The fourth proportional to 55,505.66, 83,285.82 and 25,919.19 is: 38,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,505.66 : 83,285.82 = 25,919.19 : x
  2. Step 2: Convert to fraction form
    55,505.66/83,285.82 = 25,919.19/x
  3. Step 3: Cross multiply
    55,505.66x = 83,285.82 × 25,919.19
  4. Step 4: Simplify right side
    55,505.66x = 2,158,700,992.89
  5. Step 5: Solve for x
    x = 2,158,700,992.89/55,505.66
  6. Step 6: Final answer
    x = 38,891.55

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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.