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Finding the Fourth Proportional to 27,555.62, 38,026.96 and 14,980.38

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Solution

The fourth proportional to 27,555.62, 38,026.96 and 14,980.38 is: 20,673.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.62 : 38,026.96 = 14,980.38 : x
  2. Step 2: Convert to fraction form
    27,555.62/38,026.96 = 14,980.38/x
  3. Step 3: Cross multiply
    27,555.62x = 38,026.96 × 14,980.38
  4. Step 4: Simplify right side
    27,555.62x = 569,658,311.04
  5. Step 5: Solve for x
    x = 569,658,311.04/27,555.62
  6. Step 6: Final answer
    x = 20,673.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.