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Finding the Fourth Proportional to 29,039.60, 43,565.07 and 9,316.64

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Solution

The fourth proportional to 29,039.60, 43,565.07 and 9,316.64 is: 13,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,039.60 : 43,565.07 = 9,316.64 : x
  2. Step 2: Convert to fraction form
    29,039.60/43,565.07 = 9,316.64/x
  3. Step 3: Cross multiply
    29,039.60x = 43,565.07 × 9,316.64
  4. Step 4: Simplify right side
    29,039.60x = 405,879,855.94
  5. Step 5: Solve for x
    x = 405,879,855.94/29,039.60
  6. Step 6: Final answer
    x = 13,976.77

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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.