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Finding the Fourth Proportional to 4,383.60, 6,564.60 and 4,189.20

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Solution

The fourth proportional to 4,383.60, 6,564.60 and 4,189.20 is: 6,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,383.60 : 6,564.60 = 4,189.20 : x
  2. Step 2: Convert to fraction form
    4,383.60/6,564.60 = 4,189.20/x
  3. Step 3: Cross multiply
    4,383.60x = 6,564.60 × 4,189.20
  4. Step 4: Simplify right side
    4,383.60x = 27,500,422.32
  5. Step 5: Solve for x
    x = 27,500,422.32/4,383.60
  6. Step 6: Final answer
    x = 6,273.48

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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.