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Finding the Fourth Proportional to 17,426.80, 26,140.20 and 13,052.80

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Solution

The fourth proportional to 17,426.80, 26,140.20 and 13,052.80 is: 19,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,426.80 : 26,140.20 = 13,052.80 : x
  2. Step 2: Convert to fraction form
    17,426.80/26,140.20 = 13,052.80/x
  3. Step 3: Cross multiply
    17,426.80x = 26,140.20 × 13,052.80
  4. Step 4: Simplify right side
    17,426.80x = 341,202,802.56
  5. Step 5: Solve for x
    x = 341,202,802.56/17,426.80
  6. Step 6: Final answer
    x = 19,579.20

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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.