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Finding the Fourth Proportional to 56,671.20, 85,006.80 and 27,082.08

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Solution

The fourth proportional to 56,671.20, 85,006.80 and 27,082.08 is: 40,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,671.20 : 85,006.80 = 27,082.08 : x
  2. Step 2: Convert to fraction form
    56,671.20/85,006.80 = 27,082.08/x
  3. Step 3: Cross multiply
    56,671.20x = 85,006.80 × 27,082.08
  4. Step 4: Simplify right side
    56,671.20x = 2,302,160,958.14
  5. Step 5: Solve for x
    x = 2,302,160,958.14/56,671.20
  6. Step 6: Final answer
    x = 40,623.12

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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.