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Finding the Fourth Proportional to 18,504.89, 27,746.71 and 7,247.05

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Solution

The fourth proportional to 18,504.89, 27,746.71 and 7,247.05 is: 10,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.89 : 27,746.71 = 7,247.05 : x
  2. Step 2: Convert to fraction form
    18,504.89/27,746.71 = 7,247.05/x
  3. Step 3: Cross multiply
    18,504.89x = 27,746.71 × 7,247.05
  4. Step 4: Simplify right side
    18,504.89x = 201,081,794.71
  5. Step 5: Solve for x
    x = 201,081,794.71/18,504.89
  6. Step 6: Final answer
    x = 10,866.41

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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.