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Finding the Fourth Proportional to 56,372.76, 77,740.74 and 33,708.09

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Solution

The fourth proportional to 56,372.76, 77,740.74 and 33,708.09 is: 46,485.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,372.76 : 77,740.74 = 33,708.09 : x
  2. Step 2: Convert to fraction form
    56,372.76/77,740.74 = 33,708.09/x
  3. Step 3: Cross multiply
    56,372.76x = 77,740.74 × 33,708.09
  4. Step 4: Simplify right side
    56,372.76x = 2,620,491,860.59
  5. Step 5: Solve for x
    x = 2,620,491,860.59/56,372.76
  6. Step 6: Final answer
    x = 46,485.07

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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.