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Finding the Fourth Proportional to 34,373.62, 51,553 and 12,187.72

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Solution

The fourth proportional to 34,373.62, 51,553 and 12,187.72 is: 18,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,373.62 : 51,553 = 12,187.72 : x
  2. Step 2: Convert to fraction form
    34,373.62/51,553 = 12,187.72/x
  3. Step 3: Cross multiply
    34,373.62x = 51,553 × 12,187.72
  4. Step 4: Simplify right side
    34,373.62x = 628,313,529.16
  5. Step 5: Solve for x
    x = 628,313,529.16/34,373.62
  6. Step 6: Final answer
    x = 18,278.95

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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.