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Finding the Fourth Proportional to 5,918.76, 8,890.56 and 5,722.20

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Solution

The fourth proportional to 5,918.76, 8,890.56 and 5,722.20 is: 8,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.76 : 8,890.56 = 5,722.20 : x
  2. Step 2: Convert to fraction form
    5,918.76/8,890.56 = 5,722.20/x
  3. Step 3: Cross multiply
    5,918.76x = 8,890.56 × 5,722.20
  4. Step 4: Simplify right side
    5,918.76x = 50,873,562.43
  5. Step 5: Solve for x
    x = 50,873,562.43/5,918.76
  6. Step 6: Final answer
    x = 8,595.31

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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.