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Finding the Fourth Proportional to 43,473.94, 65,198.86 and 15,390.29

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Solution

The fourth proportional to 43,473.94, 65,198.86 and 15,390.29 is: 23,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,473.94 : 65,198.86 = 15,390.29 : x
  2. Step 2: Convert to fraction form
    43,473.94/65,198.86 = 15,390.29/x
  3. Step 3: Cross multiply
    43,473.94x = 65,198.86 × 15,390.29
  4. Step 4: Simplify right side
    43,473.94x = 1,003,429,363.07
  5. Step 5: Solve for x
    x = 1,003,429,363.07/43,473.94
  6. Step 6: Final answer
    x = 23,081.17

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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.