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Finding the Fourth Proportional to 57,262.84, 79,020.88 and 33,390.52

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Solution

The fourth proportional to 57,262.84, 79,020.88 and 33,390.52 is: 46,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,262.84 : 79,020.88 = 33,390.52 : x
  2. Step 2: Convert to fraction form
    57,262.84/79,020.88 = 33,390.52/x
  3. Step 3: Cross multiply
    57,262.84x = 79,020.88 × 33,390.52
  4. Step 4: Simplify right side
    57,262.84x = 2,638,548,274.06
  5. Step 5: Solve for x
    x = 2,638,548,274.06/57,262.84
  6. Step 6: Final answer
    x = 46,077.85

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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.