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Finding the Fourth Proportional to 34,967.46, 52,443.90 and 12,791.28

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Solution

The fourth proportional to 34,967.46, 52,443.90 and 12,791.28 is: 19,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,967.46 : 52,443.90 = 12,791.28 : x
  2. Step 2: Convert to fraction form
    34,967.46/52,443.90 = 12,791.28/x
  3. Step 3: Cross multiply
    34,967.46x = 52,443.90 × 12,791.28
  4. Step 4: Simplify right side
    34,967.46x = 670,824,609.19
  5. Step 5: Solve for x
    x = 670,824,609.19/34,967.46
  6. Step 6: Final answer
    x = 19,184.25

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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.