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Finding the Fourth Proportional to 16,673.80, 23,009.74 and 9,221.80

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Solution

The fourth proportional to 16,673.80, 23,009.74 and 9,221.80 is: 12,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,673.80 : 23,009.74 = 9,221.80 : x
  2. Step 2: Convert to fraction form
    16,673.80/23,009.74 = 9,221.80/x
  3. Step 3: Cross multiply
    16,673.80x = 23,009.74 × 9,221.80
  4. Step 4: Simplify right side
    16,673.80x = 212,191,220.33
  5. Step 5: Solve for x
    x = 212,191,220.33/16,673.80
  6. Step 6: Final answer
    x = 12,726.03

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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.