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Finding the Fourth Proportional to 19,134.68, 26,414.84 and 12,771.84

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Solution

The fourth proportional to 19,134.68, 26,414.84 and 12,771.84 is: 17,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.68 : 26,414.84 = 12,771.84 : x
  2. Step 2: Convert to fraction form
    19,134.68/26,414.84 = 12,771.84/x
  3. Step 3: Cross multiply
    19,134.68x = 26,414.84 × 12,771.84
  4. Step 4: Simplify right side
    19,134.68x = 337,366,110.11
  5. Step 5: Solve for x
    x = 337,366,110.11/19,134.68
  6. Step 6: Final answer
    x = 17,631.13

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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.