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Finding the Fourth Proportional to 85,692.37, 128,537.17 and 23,362.87

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Solution

The fourth proportional to 85,692.37, 128,537.17 and 23,362.87 is: 35,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,692.37 : 128,537.17 = 23,362.87 : x
  2. Step 2: Convert to fraction form
    85,692.37/128,537.17 = 23,362.87/x
  3. Step 3: Cross multiply
    85,692.37x = 128,537.17 × 23,362.87
  4. Step 4: Simplify right side
    85,692.37x = 3,002,996,433.38
  5. Step 5: Solve for x
    x = 3,002,996,433.38/85,692.37
  6. Step 6: Final answer
    x = 35,043.92

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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.