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Finding the Fourth Proportional to 14,491.91, 20,035.40 and 10,709.11

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Solution

The fourth proportional to 14,491.91, 20,035.40 and 10,709.11 is: 14,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.91 : 20,035.40 = 10,709.11 : x
  2. Step 2: Convert to fraction form
    14,491.91/20,035.40 = 10,709.11/x
  3. Step 3: Cross multiply
    14,491.91x = 20,035.40 × 10,709.11
  4. Step 4: Simplify right side
    14,491.91x = 214,561,334.23
  5. Step 5: Solve for x
    x = 214,561,334.23/14,491.91
  6. Step 6: Final answer
    x = 14,805.59

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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.