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Finding the Fourth Proportional to 3,528.74, 5,293.20 and 1,063.64

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Solution

The fourth proportional to 3,528.74, 5,293.20 and 1,063.64 is: 1,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.74 : 5,293.20 = 1,063.64 : x
  2. Step 2: Convert to fraction form
    3,528.74/5,293.20 = 1,063.64/x
  3. Step 3: Cross multiply
    3,528.74x = 5,293.20 × 1,063.64
  4. Step 4: Simplify right side
    3,528.74x = 5,630,059.25
  5. Step 5: Solve for x
    x = 5,630,059.25/3,528.74
  6. Step 6: Final answer
    x = 1,595.49

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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.