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Finding the Fourth Proportional to 39,816.80, 59,638.80 and 34,632.80

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Solution

The fourth proportional to 39,816.80, 59,638.80 and 34,632.80 is: 51,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.80 : 59,638.80 = 34,632.80 : x
  2. Step 2: Convert to fraction form
    39,816.80/59,638.80 = 34,632.80/x
  3. Step 3: Cross multiply
    39,816.80x = 59,638.80 × 34,632.80
  4. Step 4: Simplify right side
    39,816.80x = 2,065,458,632.64
  5. Step 5: Solve for x
    x = 2,065,458,632.64/39,816.80
  6. Step 6: Final answer
    x = 51,874.05

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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.