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Finding the Fourth Proportional to 29,808.49, 44,712.64 and 7,621.87

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Solution

The fourth proportional to 29,808.49, 44,712.64 and 7,621.87 is: 11,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,808.49 : 44,712.64 = 7,621.87 : x
  2. Step 2: Convert to fraction form
    29,808.49/44,712.64 = 7,621.87/x
  3. Step 3: Cross multiply
    29,808.49x = 44,712.64 × 7,621.87
  4. Step 4: Simplify right side
    29,808.49x = 340,793,929.44
  5. Step 5: Solve for x
    x = 340,793,929.44/29,808.49
  6. Step 6: Final answer
    x = 11,432.78

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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.