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Finding the Fourth Proportional to 53,297.80, 79,909.64 and 26,984.54

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Solution

The fourth proportional to 53,297.80, 79,909.64 and 26,984.54 is: 40,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,297.80 : 79,909.64 = 26,984.54 : x
  2. Step 2: Convert to fraction form
    53,297.80/79,909.64 = 26,984.54/x
  3. Step 3: Cross multiply
    53,297.80x = 79,909.64 × 26,984.54
  4. Step 4: Simplify right side
    53,297.80x = 2,156,325,043.01
  5. Step 5: Solve for x
    x = 2,156,325,043.01/53,297.80
  6. Step 6: Final answer
    x = 40,458.05

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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.