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Finding the Fourth Proportional to 17,406.80, 26,110.20 and 14,126.30

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Solution

The fourth proportional to 17,406.80, 26,110.20 and 14,126.30 is: 21,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,406.80 : 26,110.20 = 14,126.30 : x
  2. Step 2: Convert to fraction form
    17,406.80/26,110.20 = 14,126.30/x
  3. Step 3: Cross multiply
    17,406.80x = 26,110.20 × 14,126.30
  4. Step 4: Simplify right side
    17,406.80x = 368,840,518.26
  5. Step 5: Solve for x
    x = 368,840,518.26/17,406.80
  6. Step 6: Final answer
    x = 21,189.45

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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.