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Finding the Fourth Proportional to 66,560.94, 99,815.22 and 27,103.77

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Solution

The fourth proportional to 66,560.94, 99,815.22 and 27,103.77 is: 40,644.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,560.94 : 99,815.22 = 27,103.77 : x
  2. Step 2: Convert to fraction form
    66,560.94/99,815.22 = 27,103.77/x
  3. Step 3: Cross multiply
    66,560.94x = 99,815.22 × 27,103.77
  4. Step 4: Simplify right side
    66,560.94x = 2,705,368,765.38
  5. Step 5: Solve for x
    x = 2,705,368,765.38/66,560.94
  6. Step 6: Final answer
    x = 40,644.99

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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.