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Finding the Fourth Proportional to 86,692.52, 130,043.28 and 27,532.82

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Solution

The fourth proportional to 86,692.52, 130,043.28 and 27,532.82 is: 41,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,692.52 : 130,043.28 = 27,532.82 : x
  2. Step 2: Convert to fraction form
    86,692.52/130,043.28 = 27,532.82/x
  3. Step 3: Cross multiply
    86,692.52x = 130,043.28 × 27,532.82
  4. Step 4: Simplify right side
    86,692.52x = 3,580,458,220.45
  5. Step 5: Solve for x
    x = 3,580,458,220.45/86,692.52
  6. Step 6: Final answer
    x = 41,300.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.