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Finding the Fourth Proportional to 27,157.28, 40,723.04 and 10,525.12

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Solution

The fourth proportional to 27,157.28, 40,723.04 and 10,525.12 is: 15,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.28 : 40,723.04 = 10,525.12 : x
  2. Step 2: Convert to fraction form
    27,157.28/40,723.04 = 10,525.12/x
  3. Step 3: Cross multiply
    27,157.28x = 40,723.04 × 10,525.12
  4. Step 4: Simplify right side
    27,157.28x = 428,614,882.76
  5. Step 5: Solve for x
    x = 428,614,882.76/27,157.28
  6. Step 6: Final answer
    x = 15,782.69

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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.