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Finding the Fourth Proportional to 55,175.60, 82,849.80 and 31,847.60

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Solution

The fourth proportional to 55,175.60, 82,849.80 and 31,847.60 is: 47,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.60 : 82,849.80 = 31,847.60 : x
  2. Step 2: Convert to fraction form
    55,175.60/82,849.80 = 31,847.60/x
  3. Step 3: Cross multiply
    55,175.60x = 82,849.80 × 31,847.60
  4. Step 4: Simplify right side
    55,175.60x = 2,638,567,290.48
  5. Step 5: Solve for x
    x = 2,638,567,290.48/55,175.60
  6. Step 6: Final answer
    x = 47,821.27

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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.