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Finding the Fourth Proportional to 17,614.80, 26,412.60 and 7,214.80

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Solution

The fourth proportional to 17,614.80, 26,412.60 and 7,214.80 is: 10,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,614.80 : 26,412.60 = 7,214.80 : x
  2. Step 2: Convert to fraction form
    17,614.80/26,412.60 = 7,214.80/x
  3. Step 3: Cross multiply
    17,614.80x = 26,412.60 × 7,214.80
  4. Step 4: Simplify right side
    17,614.80x = 190,561,626.48
  5. Step 5: Solve for x
    x = 190,561,626.48/17,614.80
  6. Step 6: Final answer
    x = 10,818.27

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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.