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Finding the Fourth Proportional to 68,829.63, 103,282.05 and 26,711.37

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Solution

The fourth proportional to 68,829.63, 103,282.05 and 26,711.37 is: 40,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829.63 : 103,282.05 = 26,711.37 : x
  2. Step 2: Convert to fraction form
    68,829.63/103,282.05 = 26,711.37/x
  3. Step 3: Cross multiply
    68,829.63x = 103,282.05 × 26,711.37
  4. Step 4: Simplify right side
    68,829.63x = 2,758,805,051.91
  5. Step 5: Solve for x
    x = 2,758,805,051.91/68,829.63
  6. Step 6: Final answer
    x = 40,081.65

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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.