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Finding the Fourth Proportional to 17,416.80, 26,125.20 and 13,042.80

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Solution

The fourth proportional to 17,416.80, 26,125.20 and 13,042.80 is: 19,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,416.80 : 26,125.20 = 13,042.80 : x
  2. Step 2: Convert to fraction form
    17,416.80/26,125.20 = 13,042.80/x
  3. Step 3: Cross multiply
    17,416.80x = 26,125.20 × 13,042.80
  4. Step 4: Simplify right side
    17,416.80x = 340,745,758.56
  5. Step 5: Solve for x
    x = 340,745,758.56/17,416.80
  6. Step 6: Final answer
    x = 19,564.20

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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.