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Finding the Fourth Proportional to 52,486.88, 78,775.82 and 27,544.55

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Solution

The fourth proportional to 52,486.88, 78,775.82 and 27,544.55 is: 41,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,486.88 : 78,775.82 = 27,544.55 : x
  2. Step 2: Convert to fraction form
    52,486.88/78,775.82 = 27,544.55/x
  3. Step 3: Cross multiply
    52,486.88x = 78,775.82 × 27,544.55
  4. Step 4: Simplify right side
    52,486.88x = 2,169,844,393.82
  5. Step 5: Solve for x
    x = 2,169,844,393.82/52,486.88
  6. Step 6: Final answer
    x = 41,340.70

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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.