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Finding the Fourth Proportional to 9,009.70, 13,514.49 and 3,086.62

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Solution

The fourth proportional to 9,009.70, 13,514.49 and 3,086.62 is: 4,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.70 : 13,514.49 = 3,086.62 : x
  2. Step 2: Convert to fraction form
    9,009.70/13,514.49 = 3,086.62/x
  3. Step 3: Cross multiply
    9,009.70x = 13,514.49 × 3,086.62
  4. Step 4: Simplify right side
    9,009.70x = 41,714,095.12
  5. Step 5: Solve for x
    x = 41,714,095.12/9,009.70
  6. Step 6: Final answer
    x = 4,629.91

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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.