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Finding the Fourth Proportional to 8,189.70, 11,301.27 and 4,652.88

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Solution

The fourth proportional to 8,189.70, 11,301.27 and 4,652.88 is: 6,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.70 : 11,301.27 = 4,652.88 : x
  2. Step 2: Convert to fraction form
    8,189.70/11,301.27 = 4,652.88/x
  3. Step 3: Cross multiply
    8,189.70x = 11,301.27 × 4,652.88
  4. Step 4: Simplify right side
    8,189.70x = 52,583,453.16
  5. Step 5: Solve for x
    x = 52,583,453.16/8,189.70
  6. Step 6: Final answer
    x = 6,420.68

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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.