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Finding the Fourth Proportional to 55,356, 76,425.84 and 35,518.56

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Solution

The fourth proportional to 55,356, 76,425.84 and 35,518.56 is: 49,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,356 : 76,425.84 = 35,518.56 : x
  2. Step 2: Convert to fraction form
    55,356/76,425.84 = 35,518.56/x
  3. Step 3: Cross multiply
    55,356x = 76,425.84 × 35,518.56
  4. Step 4: Simplify right side
    55,356x = 2,714,535,783.59
  5. Step 5: Solve for x
    x = 2,714,535,783.59/55,356
  6. Step 6: Final answer
    x = 49,037.79

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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.