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Finding the Fourth Proportional to 29,699.80, 40,984.77 and 16,270.54

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Solution

The fourth proportional to 29,699.80, 40,984.77 and 16,270.54 is: 22,452.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,699.80 : 40,984.77 = 16,270.54 : x
  2. Step 2: Convert to fraction form
    29,699.80/40,984.77 = 16,270.54/x
  3. Step 3: Cross multiply
    29,699.80x = 40,984.77 × 16,270.54
  4. Step 4: Simplify right side
    29,699.80x = 666,844,339.68
  5. Step 5: Solve for x
    x = 666,844,339.68/29,699.80
  6. Step 6: Final answer
    x = 22,452.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.