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Finding the Fourth Proportional to 56,642.20, 84,866.10 and 36,910.60

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Solution

The fourth proportional to 56,642.20, 84,866.10 and 36,910.60 is: 55,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,642.20 : 84,866.10 = 36,910.60 : x
  2. Step 2: Convert to fraction form
    56,642.20/84,866.10 = 36,910.60/x
  3. Step 3: Cross multiply
    56,642.20x = 84,866.10 × 36,910.60
  4. Step 4: Simplify right side
    56,642.20x = 3,132,458,670.66
  5. Step 5: Solve for x
    x = 3,132,458,670.66/56,642.20
  6. Step 6: Final answer
    x = 55,302.56

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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.