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Finding the Fourth Proportional to 18,008.67, 27,013.01 and 4,862.07

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Solution

The fourth proportional to 18,008.67, 27,013.01 and 4,862.07 is: 7,293.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008.67 : 27,013.01 = 4,862.07 : x
  2. Step 2: Convert to fraction form
    18,008.67/27,013.01 = 4,862.07/x
  3. Step 3: Cross multiply
    18,008.67x = 27,013.01 × 4,862.07
  4. Step 4: Simplify right side
    18,008.67x = 131,339,121.22
  5. Step 5: Solve for x
    x = 131,339,121.22/18,008.67
  6. Step 6: Final answer
    x = 7,293.11

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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.