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Finding the Fourth Proportional to 18,482.46, 27,721.67 and 7,386.27

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Solution

The fourth proportional to 18,482.46, 27,721.67 and 7,386.27 is: 11,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.46 : 27,721.67 = 7,386.27 : x
  2. Step 2: Convert to fraction form
    18,482.46/27,721.67 = 7,386.27/x
  3. Step 3: Cross multiply
    18,482.46x = 27,721.67 × 7,386.27
  4. Step 4: Simplify right side
    18,482.46x = 204,759,702.54
  5. Step 5: Solve for x
    x = 204,759,702.54/18,482.46
  6. Step 6: Final answer
    x = 11,078.60

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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.