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Finding the Fourth Proportional to 14,909.98, 20,574.43 and 8,195.53

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Solution

The fourth proportional to 14,909.98, 20,574.43 and 8,195.53 is: 11,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.98 : 20,574.43 = 8,195.53 : x
  2. Step 2: Convert to fraction form
    14,909.98/20,574.43 = 8,195.53/x
  3. Step 3: Cross multiply
    14,909.98x = 20,574.43 × 8,195.53
  4. Step 4: Simplify right side
    14,909.98x = 168,618,358.30
  5. Step 5: Solve for x
    x = 168,618,358.30/14,909.98
  6. Step 6: Final answer
    x = 11,309.09

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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.