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Finding the Fourth Proportional to 2,353.87, 3,247.97 and 1,358.97

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Solution

The fourth proportional to 2,353.87, 3,247.97 and 1,358.97 is: 1,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.87 : 3,247.97 = 1,358.97 : x
  2. Step 2: Convert to fraction form
    2,353.87/3,247.97 = 1,358.97/x
  3. Step 3: Cross multiply
    2,353.87x = 3,247.97 × 1,358.97
  4. Step 4: Simplify right side
    2,353.87x = 4,413,874.82
  5. Step 5: Solve for x
    x = 4,413,874.82/2,353.87
  6. Step 6: Final answer
    x = 1,875.16

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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.