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Finding the Fourth Proportional to 15,093.17, 20,834.17 and 12,960.14

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Solution

The fourth proportional to 15,093.17, 20,834.17 and 12,960.14 is: 17,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,093.17 : 20,834.17 = 12,960.14 : x
  2. Step 2: Convert to fraction form
    15,093.17/20,834.17 = 12,960.14/x
  3. Step 3: Cross multiply
    15,093.17x = 20,834.17 × 12,960.14
  4. Step 4: Simplify right side
    15,093.17x = 270,013,802.43
  5. Step 5: Solve for x
    x = 270,013,802.43/15,093.17
  6. Step 6: Final answer
    x = 17,889.80

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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.