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Finding the Fourth Proportional to 89,521, 134,310.78 and 27,191.56

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Solution

The fourth proportional to 89,521, 134,310.78 and 27,191.56 is: 40,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,521 : 134,310.78 = 27,191.56 : x
  2. Step 2: Convert to fraction form
    89,521/134,310.78 = 27,191.56/x
  3. Step 3: Cross multiply
    89,521x = 134,310.78 × 27,191.56
  4. Step 4: Simplify right side
    89,521x = 3,652,119,633.02
  5. Step 5: Solve for x
    x = 3,652,119,633.02/89,521
  6. Step 6: Final answer
    x = 40,796.23

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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.