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Finding the Fourth Proportional to 2,295.56, 3,443.56 and 2,139.28

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Solution

The fourth proportional to 2,295.56, 3,443.56 and 2,139.28 is: 3,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.56 : 3,443.56 = 2,139.28 : x
  2. Step 2: Convert to fraction form
    2,295.56/3,443.56 = 2,139.28/x
  3. Step 3: Cross multiply
    2,295.56x = 3,443.56 × 2,139.28
  4. Step 4: Simplify right side
    2,295.56x = 7,366,737.11
  5. Step 5: Solve for x
    x = 7,366,737.11/2,295.56
  6. Step 6: Final answer
    x = 3,209.13

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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.