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Finding the Fourth Proportional to 89,381.70, 134,072.55 and 27,052.20

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Solution

The fourth proportional to 89,381.70, 134,072.55 and 27,052.20 is: 40,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,381.70 : 134,072.55 = 27,052.20 : x
  2. Step 2: Convert to fraction form
    89,381.70/134,072.55 = 27,052.20/x
  3. Step 3: Cross multiply
    89,381.70x = 134,072.55 × 27,052.20
  4. Step 4: Simplify right side
    89,381.70x = 3,626,957,437.11
  5. Step 5: Solve for x
    x = 3,626,957,437.11/89,381.70
  6. Step 6: Final answer
    x = 40,578.30

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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.