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Finding the Fourth Proportional to 26,993.42, 40,490.13 and 13,837.40

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Solution

The fourth proportional to 26,993.42, 40,490.13 and 13,837.40 is: 20,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,993.42 : 40,490.13 = 13,837.40 : x
  2. Step 2: Convert to fraction form
    26,993.42/40,490.13 = 13,837.40/x
  3. Step 3: Cross multiply
    26,993.42x = 40,490.13 × 13,837.40
  4. Step 4: Simplify right side
    26,993.42x = 560,277,922.41
  5. Step 5: Solve for x
    x = 560,277,922.41/26,993.42
  6. Step 6: Final answer
    x = 20,756.10

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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.