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Finding the Fourth Proportional to 29,399.28, 44,090.28 and 8,620.08

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Solution

The fourth proportional to 29,399.28, 44,090.28 and 8,620.08 is: 12,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,399.28 : 44,090.28 = 8,620.08 : x
  2. Step 2: Convert to fraction form
    29,399.28/44,090.28 = 8,620.08/x
  3. Step 3: Cross multiply
    29,399.28x = 44,090.28 × 8,620.08
  4. Step 4: Simplify right side
    29,399.28x = 380,061,740.82
  5. Step 5: Solve for x
    x = 380,061,740.82/29,399.28
  6. Step 6: Final answer
    x = 12,927.59

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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.