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Finding the Fourth Proportional to 18,407.25, 27,736.17 and 16,393.16

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Solution

The fourth proportional to 18,407.25, 27,736.17 and 16,393.16 is: 24,701.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.25 : 27,736.17 = 16,393.16 : x
  2. Step 2: Convert to fraction form
    18,407.25/27,736.17 = 16,393.16/x
  3. Step 3: Cross multiply
    18,407.25x = 27,736.17 × 16,393.16
  4. Step 4: Simplify right side
    18,407.25x = 454,683,494.67
  5. Step 5: Solve for x
    x = 454,683,494.67/18,407.25
  6. Step 6: Final answer
    x = 24,701.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.