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Finding the Fourth Proportional to 12,954.62, 17,834.14 and 12,359.50

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Solution

The fourth proportional to 12,954.62, 17,834.14 and 12,359.50 is: 17,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.62 : 17,834.14 = 12,359.50 : x
  2. Step 2: Convert to fraction form
    12,954.62/17,834.14 = 12,359.50/x
  3. Step 3: Cross multiply
    12,954.62x = 17,834.14 × 12,359.50
  4. Step 4: Simplify right side
    12,954.62x = 220,421,053.33
  5. Step 5: Solve for x
    x = 220,421,053.33/12,954.62
  6. Step 6: Final answer
    x = 17,014.86

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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.