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Finding the Fourth Proportional to 19,491.95, 29,188.11 and 10,717.22

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Solution

The fourth proportional to 19,491.95, 29,188.11 and 10,717.22 is: 16,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.95 : 29,188.11 = 10,717.22 : x
  2. Step 2: Convert to fraction form
    19,491.95/29,188.11 = 10,717.22/x
  3. Step 3: Cross multiply
    19,491.95x = 29,188.11 × 10,717.22
  4. Step 4: Simplify right side
    19,491.95x = 312,815,396.25
  5. Step 5: Solve for x
    x = 312,815,396.25/19,491.95
  6. Step 6: Final answer
    x = 16,048.44

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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.