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Finding the Fourth Proportional to 7,999.58, 12,003.58 and 5,674.58

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Solution

The fourth proportional to 7,999.58, 12,003.58 and 5,674.58 is: 8,514.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.58 : 12,003.58 = 5,674.58 : x
  2. Step 2: Convert to fraction form
    7,999.58/12,003.58 = 5,674.58/x
  3. Step 3: Cross multiply
    7,999.58x = 12,003.58 × 5,674.58
  4. Step 4: Simplify right side
    7,999.58x = 68,115,275.00
  5. Step 5: Solve for x
    x = 68,115,275.00/7,999.58
  6. Step 6: Final answer
    x = 8,514.86

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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.