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Finding the Fourth Proportional to 17,596.80, 26,301.60 and 12,412.80

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Solution

The fourth proportional to 17,596.80, 26,301.60 and 12,412.80 is: 18,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,596.80 : 26,301.60 = 12,412.80 : x
  2. Step 2: Convert to fraction form
    17,596.80/26,301.60 = 12,412.80/x
  3. Step 3: Cross multiply
    17,596.80x = 26,301.60 × 12,412.80
  4. Step 4: Simplify right side
    17,596.80x = 326,476,500.48
  5. Step 5: Solve for x
    x = 326,476,500.48/17,596.80
  6. Step 6: Final answer
    x = 18,553.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.