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Finding the Fourth Proportional to 86,791.92, 130,197.48 and 27,613.86

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Solution

The fourth proportional to 86,791.92, 130,197.48 and 27,613.86 is: 41,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,791.92 : 130,197.48 = 27,613.86 : x
  2. Step 2: Convert to fraction form
    86,791.92/130,197.48 = 27,613.86/x
  3. Step 3: Cross multiply
    86,791.92x = 130,197.48 × 27,613.86
  4. Step 4: Simplify right side
    86,791.92x = 3,595,254,985.07
  5. Step 5: Solve for x
    x = 3,595,254,985.07/86,791.92
  6. Step 6: Final answer
    x = 41,423.84

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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.