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Finding the Fourth Proportional to 3,568.02, 5,358.52 and 2,920.02

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Solution

The fourth proportional to 3,568.02, 5,358.52 and 2,920.02 is: 4,385.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.02 : 5,358.52 = 2,920.02 : x
  2. Step 2: Convert to fraction form
    3,568.02/5,358.52 = 2,920.02/x
  3. Step 3: Cross multiply
    3,568.02x = 5,358.52 × 2,920.02
  4. Step 4: Simplify right side
    3,568.02x = 15,646,985.57
  5. Step 5: Solve for x
    x = 15,646,985.57/3,568.02
  6. Step 6: Final answer
    x = 4,385.34

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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.