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Finding the Fourth Proportional to 3,609.44, 4,981.92 and 2,038.44

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Solution

The fourth proportional to 3,609.44, 4,981.92 and 2,038.44 is: 2,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.44 : 4,981.92 = 2,038.44 : x
  2. Step 2: Convert to fraction form
    3,609.44/4,981.92 = 2,038.44/x
  3. Step 3: Cross multiply
    3,609.44x = 4,981.92 × 2,038.44
  4. Step 4: Simplify right side
    3,609.44x = 10,155,345.00
  5. Step 5: Solve for x
    x = 10,155,345.00/3,609.44
  6. Step 6: Final answer
    x = 2,813.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.