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Finding the Fourth Proportional to 12,579.15, 17,359.07 and 7,273.86

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Solution

The fourth proportional to 12,579.15, 17,359.07 and 7,273.86 is: 10,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.15 : 17,359.07 = 7,273.86 : x
  2. Step 2: Convert to fraction form
    12,579.15/17,359.07 = 7,273.86/x
  3. Step 3: Cross multiply
    12,579.15x = 17,359.07 × 7,273.86
  4. Step 4: Simplify right side
    12,579.15x = 126,267,444.91
  5. Step 5: Solve for x
    x = 126,267,444.91/12,579.15
  6. Step 6: Final answer
    x = 10,037.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.