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Finding the Fourth Proportional to 29,709.93, 44,565.09 and 7,220.55

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Solution

The fourth proportional to 29,709.93, 44,565.09 and 7,220.55 is: 10,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,709.93 : 44,565.09 = 7,220.55 : x
  2. Step 2: Convert to fraction form
    29,709.93/44,565.09 = 7,220.55/x
  3. Step 3: Cross multiply
    29,709.93x = 44,565.09 × 7,220.55
  4. Step 4: Simplify right side
    29,709.93x = 321,784,460.60
  5. Step 5: Solve for x
    x = 321,784,460.60/29,709.93
  6. Step 6: Final answer
    x = 10,830.87

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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.