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Finding the Fourth Proportional to 55,675.50, 83,526.22 and 18,739.50

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Solution

The fourth proportional to 55,675.50, 83,526.22 and 18,739.50 is: 28,113.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,675.50 : 83,526.22 = 18,739.50 : x
  2. Step 2: Convert to fraction form
    55,675.50/83,526.22 = 18,739.50/x
  3. Step 3: Cross multiply
    55,675.50x = 83,526.22 × 18,739.50
  4. Step 4: Simplify right side
    55,675.50x = 1,565,239,599.69
  5. Step 5: Solve for x
    x = 1,565,239,599.69/55,675.50
  6. Step 6: Final answer
    x = 28,113.62

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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.