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Finding the Fourth Proportional to 14,491.71, 21,715.70 and 11,364.30

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Solution

The fourth proportional to 14,491.71, 21,715.70 and 11,364.30 is: 17,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.71 : 21,715.70 = 11,364.30 : x
  2. Step 2: Convert to fraction form
    14,491.71/21,715.70 = 11,364.30/x
  3. Step 3: Cross multiply
    14,491.71x = 21,715.70 × 11,364.30
  4. Step 4: Simplify right side
    14,491.71x = 246,783,672.69
  5. Step 5: Solve for x
    x = 246,783,672.69/14,491.71
  6. Step 6: Final answer
    x = 17,029.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.