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Finding the Fourth Proportional to 85,282.98, 127,952.82 and 37,891.50

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Solution

The fourth proportional to 85,282.98, 127,952.82 and 37,891.50 is: 56,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,282.98 : 127,952.82 = 37,891.50 : x
  2. Step 2: Convert to fraction form
    85,282.98/127,952.82 = 37,891.50/x
  3. Step 3: Cross multiply
    85,282.98x = 127,952.82 × 37,891.50
  4. Step 4: Simplify right side
    85,282.98x = 4,848,324,279.03
  5. Step 5: Solve for x
    x = 4,848,324,279.03/85,282.98
  6. Step 6: Final answer
    x = 56,849.85

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1.5x scale

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.