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Finding the Fourth Proportional to 12,677.96, 17,494.94 and 7,371.92

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Solution

The fourth proportional to 12,677.96, 17,494.94 and 7,371.92 is: 10,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.96 : 17,494.94 = 7,371.92 : x
  2. Step 2: Convert to fraction form
    12,677.96/17,494.94 = 7,371.92/x
  3. Step 3: Cross multiply
    12,677.96x = 17,494.94 × 7,371.92
  4. Step 4: Simplify right side
    12,677.96x = 128,971,298.08
  5. Step 5: Solve for x
    x = 128,971,298.08/12,677.96
  6. Step 6: Final answer
    x = 10,172.87

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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.