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Finding the Fourth Proportional to 12,579.03, 17,360.48 and 7,201.98

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Solution

The fourth proportional to 12,579.03, 17,360.48 and 7,201.98 is: 9,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.03 : 17,360.48 = 7,201.98 : x
  2. Step 2: Convert to fraction form
    12,579.03/17,360.48 = 7,201.98/x
  3. Step 3: Cross multiply
    12,579.03x = 17,360.48 × 7,201.98
  4. Step 4: Simplify right side
    12,579.03x = 125,029,793.74
  5. Step 5: Solve for x
    x = 125,029,793.74/12,579.03
  6. Step 6: Final answer
    x = 9,939.54

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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.