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Finding the Fourth Proportional to 14,834.69, 20,462.65 and 9,171.17

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Solution

The fourth proportional to 14,834.69, 20,462.65 and 9,171.17 is: 12,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,834.69 : 20,462.65 = 9,171.17 : x
  2. Step 2: Convert to fraction form
    14,834.69/20,462.65 = 9,171.17/x
  3. Step 3: Cross multiply
    14,834.69x = 20,462.65 × 9,171.17
  4. Step 4: Simplify right side
    14,834.69x = 187,666,316.56
  5. Step 5: Solve for x
    x = 187,666,316.56/14,834.69
  6. Step 6: Final answer
    x = 12,650.51

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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.