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Finding the Fourth Proportional to 36,388.96, 54,583.44 and 11,430.96

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Solution

The fourth proportional to 36,388.96, 54,583.44 and 11,430.96 is: 17,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,388.96 : 54,583.44 = 11,430.96 : x
  2. Step 2: Convert to fraction form
    36,388.96/54,583.44 = 11,430.96/x
  3. Step 3: Cross multiply
    36,388.96x = 54,583.44 × 11,430.96
  4. Step 4: Simplify right side
    36,388.96x = 623,941,119.30
  5. Step 5: Solve for x
    x = 623,941,119.30/36,388.96
  6. Step 6: Final answer
    x = 17,146.44

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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.