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Finding the Fourth Proportional to 12,250.67, 16,904.97 and 7,214.09

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Solution

The fourth proportional to 12,250.67, 16,904.97 and 7,214.09 is: 9,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.67 : 16,904.97 = 7,214.09 : x
  2. Step 2: Convert to fraction form
    12,250.67/16,904.97 = 7,214.09/x
  3. Step 3: Cross multiply
    12,250.67x = 16,904.97 × 7,214.09
  4. Step 4: Simplify right side
    12,250.67x = 121,953,890.50
  5. Step 5: Solve for x
    x = 121,953,890.50/12,250.67
  6. Step 6: Final answer
    x = 9,954.88

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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.