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Finding the Fourth Proportional to 17,556.40, 26,399.40 and 14,705.20

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Solution

The fourth proportional to 17,556.40, 26,399.40 and 14,705.20 is: 22,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,556.40 : 26,399.40 = 14,705.20 : x
  2. Step 2: Convert to fraction form
    17,556.40/26,399.40 = 14,705.20/x
  3. Step 3: Cross multiply
    17,556.40x = 26,399.40 × 14,705.20
  4. Step 4: Simplify right side
    17,556.40x = 388,208,456.88
  5. Step 5: Solve for x
    x = 388,208,456.88/17,556.40
  6. Step 6: Final answer
    x = 22,112.08

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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.