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Finding the Fourth Proportional to 5,918.54, 8,879.20 and 1,758.58

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Solution

The fourth proportional to 5,918.54, 8,879.20 and 1,758.58 is: 2,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.54 : 8,879.20 = 1,758.58 : x
  2. Step 2: Convert to fraction form
    5,918.54/8,879.20 = 1,758.58/x
  3. Step 3: Cross multiply
    5,918.54x = 8,879.20 × 1,758.58
  4. Step 4: Simplify right side
    5,918.54x = 15,614,783.54
  5. Step 5: Solve for x
    x = 15,614,783.54/5,918.54
  6. Step 6: Final answer
    x = 2,638.28

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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.