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Finding the Fourth Proportional to 23,186.80, 34,741.80 and 19,730.80

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Solution

The fourth proportional to 23,186.80, 34,741.80 and 19,730.80 is: 29,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,186.80 : 34,741.80 = 19,730.80 : x
  2. Step 2: Convert to fraction form
    23,186.80/34,741.80 = 19,730.80/x
  3. Step 3: Cross multiply
    23,186.80x = 34,741.80 × 19,730.80
  4. Step 4: Simplify right side
    23,186.80x = 685,483,507.44
  5. Step 5: Solve for x
    x = 685,483,507.44/23,186.80
  6. Step 6: Final answer
    x = 29,563.52

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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.