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Finding the Fourth Proportional to 61,169.16, 91,743.92 and 16,785.55

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Solution

The fourth proportional to 61,169.16, 91,743.92 and 16,785.55 is: 25,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,169.16 : 91,743.92 = 16,785.55 : x
  2. Step 2: Convert to fraction form
    61,169.16/91,743.92 = 16,785.55/x
  3. Step 3: Cross multiply
    61,169.16x = 91,743.92 × 16,785.55
  4. Step 4: Simplify right side
    61,169.16x = 1,539,972,156.36
  5. Step 5: Solve for x
    x = 1,539,972,156.36/61,169.16
  6. Step 6: Final answer
    x = 25,175.63

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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.