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Finding the Fourth Proportional to 89,995.40, 134,993.02 and 27,665.80

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Solution

The fourth proportional to 89,995.40, 134,993.02 and 27,665.80 is: 41,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,995.40 : 134,993.02 = 27,665.80 : x
  2. Step 2: Convert to fraction form
    89,995.40/134,993.02 = 27,665.80/x
  3. Step 3: Cross multiply
    89,995.40x = 134,993.02 × 27,665.80
  4. Step 4: Simplify right side
    89,995.40x = 3,734,689,892.72
  5. Step 5: Solve for x
    x = 3,734,689,892.72/89,995.40
  6. Step 6: Final answer
    x = 41,498.68

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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.