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Finding the Fourth Proportional to 55,475.50, 83,213.26 and 18,539.50

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Solution

The fourth proportional to 55,475.50, 83,213.26 and 18,539.50 is: 27,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,475.50 : 83,213.26 = 18,539.50 : x
  2. Step 2: Convert to fraction form
    55,475.50/83,213.26 = 18,539.50/x
  3. Step 3: Cross multiply
    55,475.50x = 83,213.26 × 18,539.50
  4. Step 4: Simplify right side
    55,475.50x = 1,542,732,233.77
  5. Step 5: Solve for x
    x = 1,542,732,233.77/55,475.50
  6. Step 6: Final answer
    x = 27,809.25

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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.