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Finding the Fourth Proportional to 18,377.16, 27,401.10 and 18,045.47

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Solution

The fourth proportional to 18,377.16, 27,401.10 and 18,045.47 is: 26,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.16 : 27,401.10 = 18,045.47 : x
  2. Step 2: Convert to fraction form
    18,377.16/27,401.10 = 18,045.47/x
  3. Step 3: Cross multiply
    18,377.16x = 27,401.10 × 18,045.47
  4. Step 4: Simplify right side
    18,377.16x = 494,465,591.01
  5. Step 5: Solve for x
    x = 494,465,591.01/18,377.16
  6. Step 6: Final answer
    x = 26,906.53

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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.