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Finding the Fourth Proportional to 3,662.59, 5,493.80 and 1,065.55

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Solution

The fourth proportional to 3,662.59, 5,493.80 and 1,065.55 is: 1,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,662.59 : 5,493.80 = 1,065.55 : x
  2. Step 2: Convert to fraction form
    3,662.59/5,493.80 = 1,065.55/x
  3. Step 3: Cross multiply
    3,662.59x = 5,493.80 × 1,065.55
  4. Step 4: Simplify right side
    3,662.59x = 5,853,913.26
  5. Step 5: Solve for x
    x = 5,853,913.26/3,662.59
  6. Step 6: Final answer
    x = 1,598.30

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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.