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Finding the Fourth Proportional to 5,858.61, 8,080.80 and 4,181.91

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Solution

The fourth proportional to 5,858.61, 8,080.80 and 4,181.91 is: 5,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.61 : 8,080.80 = 4,181.91 : x
  2. Step 2: Convert to fraction form
    5,858.61/8,080.80 = 4,181.91/x
  3. Step 3: Cross multiply
    5,858.61x = 8,080.80 × 4,181.91
  4. Step 4: Simplify right side
    5,858.61x = 33,793,178.33
  5. Step 5: Solve for x
    x = 33,793,178.33/5,858.61
  6. Step 6: Final answer
    x = 5,768.12

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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.