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Finding the Fourth Proportional to 5,059.88, 6,987.04 and 3,174.70

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Solution

The fourth proportional to 5,059.88, 6,987.04 and 3,174.70 is: 4,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.88 : 6,987.04 = 3,174.70 : x
  2. Step 2: Convert to fraction form
    5,059.88/6,987.04 = 3,174.70/x
  3. Step 3: Cross multiply
    5,059.88x = 6,987.04 × 3,174.70
  4. Step 4: Simplify right side
    5,059.88x = 22,181,740.01
  5. Step 5: Solve for x
    x = 22,181,740.01/5,059.88
  6. Step 6: Final answer
    x = 4,383.85

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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.