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Finding the Fourth Proportional to 27,308.90, 40,956.06 and 16,844.15

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Solution

The fourth proportional to 27,308.90, 40,956.06 and 16,844.15 is: 25,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.90 : 40,956.06 = 16,844.15 : x
  2. Step 2: Convert to fraction form
    27,308.90/40,956.06 = 16,844.15/x
  3. Step 3: Cross multiply
    27,308.90x = 40,956.06 × 16,844.15
  4. Step 4: Simplify right side
    27,308.90x = 689,870,018.05
  5. Step 5: Solve for x
    x = 689,870,018.05/27,308.90
  6. Step 6: Final answer
    x = 25,261.73

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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.