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Finding the Fourth Proportional to 3,842.64, 5,300.64 and 3,583.44

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Solution

The fourth proportional to 3,842.64, 5,300.64 and 3,583.44 is: 4,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.64 : 5,300.64 = 3,583.44 : x
  2. Step 2: Convert to fraction form
    3,842.64/5,300.64 = 3,583.44/x
  3. Step 3: Cross multiply
    3,842.64x = 5,300.64 × 3,583.44
  4. Step 4: Simplify right side
    3,842.64x = 18,994,525.40
  5. Step 5: Solve for x
    x = 18,994,525.40/3,842.64
  6. Step 6: Final answer
    x = 4,943.09

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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.