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Finding the Fourth Proportional to 68,929.70, 103,406.70 and 24,582.20

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Solution

The fourth proportional to 68,929.70, 103,406.70 and 24,582.20 is: 36,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,929.70 : 103,406.70 = 24,582.20 : x
  2. Step 2: Convert to fraction form
    68,929.70/103,406.70 = 24,582.20/x
  3. Step 3: Cross multiply
    68,929.70x = 103,406.70 × 24,582.20
  4. Step 4: Simplify right side
    68,929.70x = 2,541,964,180.74
  5. Step 5: Solve for x
    x = 2,541,964,180.74/68,929.70
  6. Step 6: Final answer
    x = 36,877.63

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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.