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Finding the Fourth Proportional to 17,990.19, 24,859.49 and 17,125.99

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Solution

The fourth proportional to 17,990.19, 24,859.49 and 17,125.99 is: 23,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.19 : 24,859.49 = 17,125.99 : x
  2. Step 2: Convert to fraction form
    17,990.19/24,859.49 = 17,125.99/x
  3. Step 3: Cross multiply
    17,990.19x = 24,859.49 × 17,125.99
  4. Step 4: Simplify right side
    17,990.19x = 425,743,229.37
  5. Step 5: Solve for x
    x = 425,743,229.37/17,990.19
  6. Step 6: Final answer
    x = 23,665.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.