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Finding the Fourth Proportional to 27,009.91, 40,514.86 and 7,288.47

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Solution

The fourth proportional to 27,009.91, 40,514.86 and 7,288.47 is: 10,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,009.91 : 40,514.86 = 7,288.47 : x
  2. Step 2: Convert to fraction form
    27,009.91/40,514.86 = 7,288.47/x
  3. Step 3: Cross multiply
    27,009.91x = 40,514.86 × 7,288.47
  4. Step 4: Simplify right side
    27,009.91x = 295,291,341.66
  5. Step 5: Solve for x
    x = 295,291,341.66/27,009.91
  6. Step 6: Final answer
    x = 10,932.70

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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.