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Finding the Fourth Proportional to 12,917.46, 17,826.27 and 7,253.46

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Solution

The fourth proportional to 12,917.46, 17,826.27 and 7,253.46 is: 10,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.46 : 17,826.27 = 7,253.46 : x
  2. Step 2: Convert to fraction form
    12,917.46/17,826.27 = 7,253.46/x
  3. Step 3: Cross multiply
    12,917.46x = 17,826.27 × 7,253.46
  4. Step 4: Simplify right side
    12,917.46x = 129,302,136.39
  5. Step 5: Solve for x
    x = 129,302,136.39/12,917.46
  6. Step 6: Final answer
    x = 10,009.87

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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.