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Finding the Fourth Proportional to 55,274.60, 76,218.72 and 37,338.48

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Solution

The fourth proportional to 55,274.60, 76,218.72 and 37,338.48 is: 51,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,274.60 : 76,218.72 = 37,338.48 : x
  2. Step 2: Convert to fraction form
    55,274.60/76,218.72 = 37,338.48/x
  3. Step 3: Cross multiply
    55,274.60x = 76,218.72 × 37,338.48
  4. Step 4: Simplify right side
    55,274.60x = 2,845,891,152.35
  5. Step 5: Solve for x
    x = 2,845,891,152.35/55,274.60
  6. Step 6: Final answer
    x = 51,486.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.