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Finding the Fourth Proportional to 27,007.90, 40,414.65 and 18,259.90

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Solution

The fourth proportional to 27,007.90, 40,414.65 and 18,259.90 is: 27,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,007.90 : 40,414.65 = 18,259.90 : x
  2. Step 2: Convert to fraction form
    27,007.90/40,414.65 = 18,259.90/x
  3. Step 3: Cross multiply
    27,007.90x = 40,414.65 × 18,259.90
  4. Step 4: Simplify right side
    27,007.90x = 737,967,467.54
  5. Step 5: Solve for x
    x = 737,967,467.54/27,007.90
  6. Step 6: Final answer
    x = 27,324.13

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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.