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Finding the Fourth Proportional to 18,553.46, 27,823.28 and 7,456.40

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Solution

The fourth proportional to 18,553.46, 27,823.28 and 7,456.40 is: 11,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.46 : 27,823.28 = 7,456.40 : x
  2. Step 2: Convert to fraction form
    18,553.46/27,823.28 = 7,456.40/x
  3. Step 3: Cross multiply
    18,553.46x = 27,823.28 × 7,456.40
  4. Step 4: Simplify right side
    18,553.46x = 207,461,504.99
  5. Step 5: Solve for x
    x = 207,461,504.99/18,553.46
  6. Step 6: Final answer
    x = 11,181.82

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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.