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Finding the Fourth Proportional to 27,868.90, 41,817.02 and 13,079.02

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Solution

The fourth proportional to 27,868.90, 41,817.02 and 13,079.02 is: 19,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.90 : 41,817.02 = 13,079.02 : x
  2. Step 2: Convert to fraction form
    27,868.90/41,817.02 = 13,079.02/x
  3. Step 3: Cross multiply
    27,868.90x = 41,817.02 × 13,079.02
  4. Step 4: Simplify right side
    27,868.90x = 546,925,470.98
  5. Step 5: Solve for x
    x = 546,925,470.98/27,868.90
  6. Step 6: Final answer
    x = 19,624.94

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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.