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Finding the Fourth Proportional to 12,253.69, 16,907.14 and 7,217.51

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Solution

The fourth proportional to 12,253.69, 16,907.14 and 7,217.51 is: 9,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.69 : 16,907.14 = 7,217.51 : x
  2. Step 2: Convert to fraction form
    12,253.69/16,907.14 = 7,217.51/x
  3. Step 3: Cross multiply
    12,253.69x = 16,907.14 × 7,217.51
  4. Step 4: Simplify right side
    12,253.69x = 122,027,433.98
  5. Step 5: Solve for x
    x = 122,027,433.98/12,253.69
  6. Step 6: Final answer
    x = 9,958.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.