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Finding the Fourth Proportional to 53,847.90, 80,735.40 and 28,551.60

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Solution

The fourth proportional to 53,847.90, 80,735.40 and 28,551.60 is: 42,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,847.90 : 80,735.40 = 28,551.60 : x
  2. Step 2: Convert to fraction form
    53,847.90/80,735.40 = 28,551.60/x
  3. Step 3: Cross multiply
    53,847.90x = 80,735.40 × 28,551.60
  4. Step 4: Simplify right side
    53,847.90x = 2,305,124,846.64
  5. Step 5: Solve for x
    x = 2,305,124,846.64/53,847.90
  6. Step 6: Final answer
    x = 42,808.07

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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.