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Finding the Fourth Proportional to 56,410.80, 84,616.20 and 43,726.20

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Solution

The fourth proportional to 56,410.80, 84,616.20 and 43,726.20 is: 65,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,410.80 : 84,616.20 = 43,726.20 : x
  2. Step 2: Convert to fraction form
    56,410.80/84,616.20 = 43,726.20/x
  3. Step 3: Cross multiply
    56,410.80x = 84,616.20 × 43,726.20
  4. Step 4: Simplify right side
    56,410.80x = 3,699,944,884.44
  5. Step 5: Solve for x
    x = 3,699,944,884.44/56,410.80
  6. Step 6: Final answer
    x = 65,589.30

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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.