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Finding the Fourth Proportional to 3,422.97, 5,128.95 and 3,094.92

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Solution

The fourth proportional to 3,422.97, 5,128.95 and 3,094.92 is: 4,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.97 : 5,128.95 = 3,094.92 : x
  2. Step 2: Convert to fraction form
    3,422.97/5,128.95 = 3,094.92/x
  3. Step 3: Cross multiply
    3,422.97x = 5,128.95 × 3,094.92
  4. Step 4: Simplify right side
    3,422.97x = 15,873,689.93
  5. Step 5: Solve for x
    x = 15,873,689.93/3,422.97
  6. Step 6: Final answer
    x = 4,637.40

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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.