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Finding the Fourth Proportional to 57,005.62, 85,509.90 and 27,012.82

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Solution

The fourth proportional to 57,005.62, 85,509.90 and 27,012.82 is: 40,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.62 : 85,509.90 = 27,012.82 : x
  2. Step 2: Convert to fraction form
    57,005.62/85,509.90 = 27,012.82/x
  3. Step 3: Cross multiply
    57,005.62x = 85,509.90 × 27,012.82
  4. Step 4: Simplify right side
    57,005.62x = 2,309,863,536.92
  5. Step 5: Solve for x
    x = 2,309,863,536.92/57,005.62
  6. Step 6: Final answer
    x = 40,519.93

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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.