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Finding the Fourth Proportional to 29,924.40, 44,789.40 and 21,176.40

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Solution

The fourth proportional to 29,924.40, 44,789.40 and 21,176.40 is: 31,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,924.40 : 44,789.40 = 21,176.40 : x
  2. Step 2: Convert to fraction form
    29,924.40/44,789.40 = 21,176.40/x
  3. Step 3: Cross multiply
    29,924.40x = 44,789.40 × 21,176.40
  4. Step 4: Simplify right side
    29,924.40x = 948,478,250.16
  5. Step 5: Solve for x
    x = 948,478,250.16/29,924.40
  6. Step 6: Final answer
    x = 31,695.82

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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.