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Finding the Fourth Proportional to 14,673.72, 20,221.74 and 10,474.68

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Solution

The fourth proportional to 14,673.72, 20,221.74 and 10,474.68 is: 14,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,673.72 : 20,221.74 = 10,474.68 : x
  2. Step 2: Convert to fraction form
    14,673.72/20,221.74 = 10,474.68/x
  3. Step 3: Cross multiply
    14,673.72x = 20,221.74 × 10,474.68
  4. Step 4: Simplify right side
    14,673.72x = 211,816,255.54
  5. Step 5: Solve for x
    x = 211,816,255.54/14,673.72
  6. Step 6: Final answer
    x = 14,435.08

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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.