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Finding the Fourth Proportional to 19,914.26, 27,491.01 and 11,529.14

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Solution

The fourth proportional to 19,914.26, 27,491.01 and 11,529.14 is: 15,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,914.26 : 27,491.01 = 11,529.14 : x
  2. Step 2: Convert to fraction form
    19,914.26/27,491.01 = 11,529.14/x
  3. Step 3: Cross multiply
    19,914.26x = 27,491.01 × 11,529.14
  4. Step 4: Simplify right side
    19,914.26x = 316,947,703.03
  5. Step 5: Solve for x
    x = 316,947,703.03/19,914.26
  6. Step 6: Final answer
    x = 15,915.62

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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.