Home / 26,606.40-39,909.60-19,996.80

Finding the Fourth Proportional to 26,606.40, 39,909.60 and 19,996.80

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Solution

The fourth proportional to 26,606.40, 39,909.60 and 19,996.80 is: 29,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,606.40 : 39,909.60 = 19,996.80 : x
  2. Step 2: Convert to fraction form
    26,606.40/39,909.60 = 19,996.80/x
  3. Step 3: Cross multiply
    26,606.40x = 39,909.60 × 19,996.80
  4. Step 4: Simplify right side
    26,606.40x = 798,064,289.28
  5. Step 5: Solve for x
    x = 798,064,289.28/26,606.40
  6. Step 6: Final answer
    x = 29,995.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.