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Finding the Fourth Proportional to 6,157.80, 9,238.32 and 1,775.61

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Solution

The fourth proportional to 6,157.80, 9,238.32 and 1,775.61 is: 2,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,157.80 : 9,238.32 = 1,775.61 : x
  2. Step 2: Convert to fraction form
    6,157.80/9,238.32 = 1,775.61/x
  3. Step 3: Cross multiply
    6,157.80x = 9,238.32 × 1,775.61
  4. Step 4: Simplify right side
    6,157.80x = 16,403,653.38
  5. Step 5: Solve for x
    x = 16,403,653.38/6,157.80
  6. Step 6: Final answer
    x = 2,663.88

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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.