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Finding the Fourth Proportional to 17,829.10, 26,743.65 and 8,613.10

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Solution

The fourth proportional to 17,829.10, 26,743.65 and 8,613.10 is: 12,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,829.10 : 26,743.65 = 8,613.10 : x
  2. Step 2: Convert to fraction form
    17,829.10/26,743.65 = 8,613.10/x
  3. Step 3: Cross multiply
    17,829.10x = 26,743.65 × 8,613.10
  4. Step 4: Simplify right side
    17,829.10x = 230,345,731.82
  5. Step 5: Solve for x
    x = 230,345,731.82/17,829.10
  6. Step 6: Final answer
    x = 12,919.65

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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.