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Finding the Fourth Proportional to 55,486.61, 76,549.97 and 35,339.87

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Solution

The fourth proportional to 55,486.61, 76,549.97 and 35,339.87 is: 48,755.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,486.61 : 76,549.97 = 35,339.87 : x
  2. Step 2: Convert to fraction form
    55,486.61/76,549.97 = 35,339.87/x
  3. Step 3: Cross multiply
    55,486.61x = 76,549.97 × 35,339.87
  4. Step 4: Simplify right side
    55,486.61x = 2,705,265,811.60
  5. Step 5: Solve for x
    x = 2,705,265,811.60/55,486.61
  6. Step 6: Final answer
    x = 48,755.29

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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.