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Finding the Fourth Proportional to 29,809.08, 44,708.84 and 7,621.28

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Solution

The fourth proportional to 29,809.08, 44,708.84 and 7,621.28 is: 11,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.08 : 44,708.84 = 7,621.28 : x
  2. Step 2: Convert to fraction form
    29,809.08/44,708.84 = 7,621.28/x
  3. Step 3: Cross multiply
    29,809.08x = 44,708.84 × 7,621.28
  4. Step 4: Simplify right side
    29,809.08x = 340,738,326.46
  5. Step 5: Solve for x
    x = 340,738,326.46/29,809.08
  6. Step 6: Final answer
    x = 11,430.69

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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.