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Finding the Fourth Proportional to 1,595.92, 2,395.68 and 867.28

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Solution

The fourth proportional to 1,595.92, 2,395.68 and 867.28 is: 1,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.92 : 2,395.68 = 867.28 : x
  2. Step 2: Convert to fraction form
    1,595.92/2,395.68 = 867.28/x
  3. Step 3: Cross multiply
    1,595.92x = 2,395.68 × 867.28
  4. Step 4: Simplify right side
    1,595.92x = 2,077,725.35
  5. Step 5: Solve for x
    x = 2,077,725.35/1,595.92
  6. Step 6: Final answer
    x = 1,301.90

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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.